Italy's Debora Vivarelli reacts during the table tennis women's singles first round match against Australia's Lay Jian Fang at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Austria's Liu Jia competes during the table tennis women's singles first round match against Ukraine's Ganna Gaponova at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Nikhil Kumar, of United States reacts during the table tennis women's singles first round match against Ecuador's Alberto Mino at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Nikhil Kumar, of United States reacts during the table tennis women's singles first round match against Ecuador's Alberto Mino at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Nikhil Kumar, of United States competes during the table tennis women's singles first round match against Ecuador's Alberto Mino at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Nigeria's Olajide Omotayo competes during the table tennis men's singles first round match against Portugal's Tiago Apolonia at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Portugal's Tiago Apolonia competes during the table tennis men's singles first round match against Nigeria's Olajide Omotayo at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Hungary's Bence Majoros reacts after the table tennis men's singles first round match against Algeria's Larbi Bouriah at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Bulgaria's Polina Trifonova competes during the table tennis women's singles first round match against Luxembourg's Sarah De Nutte at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Bulgaria's Polina Trifonova competes during the table tennis women's singles first round match against Luxembourg's Sarah De Nutte at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Luxembourg's Sarah De Nutte competes during the table tennis women's singles first round match against Bulgaria's Polina Trifonova at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

Luxembourg's Sarah De Nutte reacts during the table tennis women's singles first round match against Bulgaria's Polina Trifonova at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Kin Cheung)

USA's Liu Juan hits a shot against Nigeria's Olufunke Oshonaike during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

USA's Liu Juan eyes the ball as she serves to Nigeria's Olufunke Oshonaike during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Australia's Jian Fang Lay serves to Cuba's Daniela Fonseca during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Australia's Jian Fang Lay hits a shot against Cuba's Daniela Fonseca during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Guyana's Chelsea Edghill hits a shot against Fiji's Sally Yee during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Guyana's Chelsea Edghill hits a shot against Fiji's Sally Yee during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Guyana's Chelsea Edghill hits a shot against Fiji's Sally Yee during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Guyana's Chelsea Edghill hits a shot against Fiji's Sally Yee during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Mongolia's Bolorerdene Batmunkh hits a shot against Tunisia's Fadwa Garci during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Mongolia's Bolorerdene Batmunkh hits a shot against Tunisia's Fadwa Garci during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Mongolia's Bolorerdene Batmunkh hits a shot against Tunisia's Fadwa Garci during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Bulgaria's Polina Trifonova hits a shot against Cameroon's Sarah Hanffou during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Bulgaria's Polina Trifonova hits a shot against Cameroon's Sarah Hanffou during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Bulgaria's Polina Trifonova hits a shot against Cameroon's Sarah Hanffou during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Cameroon's Sarah Hanffou hits a shot against Bulgaria's Polina Trifonova during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Cameroon's Sarah Hanffou hits a shot against Bulgaria's Polina Trifonova during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Syria's Hend Zaza wipes her face during her women's singles preliminary round table tennis match against Austria's Liu Jia at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Austria's Liu Jia eyes the ball as she serves to Syria's Hend Zaza during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Austria's Liu Jia hits a shot against Syria's Hend Zaza during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Austria's Liu Jia hits a shot against Syria's Hend Zaza during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Austria's Liu Jia hits a shot against Syria's Hend Zaza during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza reacts as she plays against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza reacts during her women's singles preliminary round table tennis match against Austria's Liu Jia at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza eyes the ball as she serves to Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza serves to Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza (BOTTOM) is conforted by Austria's Liu Jia after being defeated 4-0 during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza (BOTTOM) is conforted by Austria's Liu Jia after being defeated 4-0 during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

A security person is pictured during table tennis women's singles preliminary round at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

A volunteer is pictured during table tennis women's singles preliminary round at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

A cameraman works during the table tennis women's singles preliminary round at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza eyes the ball as she serves to Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza hits a shot against Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza reacts after being defeated 4-0 by Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Syria's Hend Zaza serves to Austria's Liu Jia during their women's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

USA's Nikhil Kumar serves to Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

USA's Nikhil Kumar serves to Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

USA's Nikhil Kumar serves to Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

USA's Nikhil Kumar serves to Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

USA's Nikhil Kumar hits a shot against Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

USA's Nikhil Kumar hits a shot against Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

USA's coach Jun Gao takes a picture of table tennis team at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

France's Emmanuel Lebesson (L) and France's Jia Nan Yuan (TOP) compete during their mixed doubles round of 16 table tennis match against Australia's Heming Hu and Melissa Tapper (R) at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Australia's Heming Hu (TOP R) and Melissa Tapper (TOP L) compete during their mixed doubles round of 16 table tennis match against France's Emmanuel Lebesson (BOTTOM R) and Jia Nan Yuan at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Australia's Heming Hu (R) and Melissa Tapper (2R) compete during their mixed doubles round of 16 table tennis match against France's Emmanuel Lebesson (L) and Jia Nan Yuan at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Players compete during their mixed doubles round of 16 table tennis matches at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

A woman mops the floor during the table tennis mixed doubles round of 16 at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Japan's Jun Mizutani (L) and Japan's Mima Ito (2R) compete during their mixed doubles round of 16 table tennis match against Austria's Stefan Fegerl and Austria's Sofia Polcanova at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Japan's Jun Mizutani (L) and Japan's Mima Ito (2R) compete during their mixed doubles round of 16 table tennis match against Austria's Stefan Fegerl and Austria's Sofia Polcanova at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Japan's Jun Mizutani (R) and Japan's Mima Ito (L) compete during their mixed doubles round of 16 table tennis match against Austria's Stefan Fegerl and Austria's Sofia Polcanova at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Japan's Jun Mizutani (L) and Japan's Mima Ito (R) compete during their mixed doubles round of 16 table tennis match against Austria's Stefan Fegerl and Austria's Sofia Polcanova at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Austria's Stefan Fegerl (R) and Austria's Sofia Polcanova (L) compete during their mixed doubles round of 16 table tennis match against Japan's Jun Mizutani and Japan's Mima Ito at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Hong Kong's Doo Hoi-kem (L) and Hong Kong's Wong Chun-ting compete during their mixed doubles round of 16 table tennis match against Hungary's Adam Szudi and Hungary's Szandra Pergel at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Hong Kong's Doo Hoi-kem (L) and Hong Kong's Wong Chun-ting (R) compete during their mixed doubles round of 16 table tennis match against Hungary's Adam Szudi and Hungary's Szandra Pergel at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Hong Kong's Doo Hoi-kem (R) and Hong Kong's Wong Chun-ting (L) compete during their mixed doubles round of 16 table tennis match against Hungary's Adam Szudi and Hungary's Szandra Pergel at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Hungary's Adam Szudi (R) and Hungary's Szandra Pergel compete against Hong Kong's Doo Hoi-kem and Wong Chun-ting during their mixed doubles round of 16 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Hungary's Adam Szudi (R) and Hungary's Szandra Pergel compete against Hong Kong's Doo Hoi-kem and Wong Chun-ting during their mixed doubles round of 16 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

An overview image shows USA's Nikhil Kumar competing against Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Antonin THUILLIER / POOL / AFP)

An overview image shows USA's Nikhil Kumar (TOP) competing against Mongolia's Lkhagvasuren Enkhbat during their men's singles preliminary round table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Antonin THUILLIER / POOL / AFP)

An overview image shows Slovakia's Barbora Balazova (BOTTOM) and Slovakia's Lubomir Pistej (L) competing during their mixed doubles round of 16 table tennis match against Romania's Ovidiu Ionescu (TOP) and Romania's Bernadette Szocs at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Antonin THUILLIER / POOL / AFP)

China's Xu Xin (L) and China's Liu Shiwen (R) compete during their mixed doubles round of 16 table tennis match against Canada's Mo Zhang and Canada's Zhen Wang at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

China's Xu Xin (L) and China's Liu Shiwen (R) compete during their mixed doubles round of 16 table tennis match against Canada's Mo Zhang and Canada's Zhen Wang at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Canada's Mo Zhang (R) and Canada's Zhen Wang compete during their mixed doubles round of 16 table tennis match against China's Xu Xin and China's Liu Shiwen at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

China's Xu Xin (L) and China's Liu Shiwen (R) compete during their mixed doubles round of 16 table tennis match against Canada's Mo Zhang and Canada's Zhen Wang at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Canada's Mo Zhang (L) and Canada's Zhen Wang compete during their mixed doubles round of 16 table tennis match against China's Xu Xin and China's Liu Shiwen at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

South Korea's Jeon Ji-hee (L) and South Korea's Lee Sang-su (R) compete during their mixed doubles round of 16 table tennis match against Egypt's Omar Assar and Egypt's Dina Meshref at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

South Korea's Jeon Ji-hee (L) and South Korea's Lee Sang-su (R) compete during their mixed doubles round of 16 table tennis match against Egypt's Omar Assar and Egypt's Dina Meshref at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Egypt's Omar Assar (R) and Egypt's Dina Meshref compete during their mixed doubles round of 16 table tennis match against South Korea's Jeon Ji-hee and Lee Sang-su at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

A woman cleans a table during the table tennis mixed doubles round of 16 at the Tokyo Metropolitan Gymnasium in the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

An overview image shows paddles on a table during the table tennis' first day competition at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Antonin THUILLIER / POOL / AFP)

An overview image shows paddles on a table during the table tennis' first day competition at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Antonin THUILLIER / POOL / AFP)

An overview image shows paddles on a table during the table tennis' first day competition at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Antonin THUILLIER / POOL / AFP)

Seats remain empty during the Tokyo 2020 Olympic Games table tennis first day competition at the Tokyo Metropolitan Gymnasium in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Seats remain empty during the Tokyo 2020 Olympic Games table tennis first day competition at the Tokyo Metropolitan Gymnasium in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Canada's Mo Zhang hits a shot during the mixed doubles round of 16 table tennis match against China at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

An overview image shows Slovakia's Barbora Balazova competing during the mixed doubles round of 16 table tennis match against Romania at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Antonin THUILLIER / POOL / AFP)

Senegal's Ibrahima Diaw eyes the ball as he serves to Singapore's Clarence Chew during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Singapore's Clarence Chew hits a shot against Senegal's Ibrahima Diaw during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw eyes the ball as he serves to Singapore's Clarence Chew during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw eyes the ball as he serves to Singapore's Clarence Chew during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Singapore's Clarence Chew serves to Senegal's Ibrahima Diaw during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Singapore's Clarence Chew eyes the ball as he serves to Senegal's Ibrahima Diaw during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw tosses his paddle in hte air during his men's singles round 1 table tennis match against Singapore's Clarence Chew at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw tosses his paddle in hte air during his men's singles round 1 table tennis match against Singapore's Clarence Chew at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw serves to Singapore's Clarence Chew during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw serves to Singapore's Clarence Chew during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw eyes the ball as he serves to Singapore's Clarence Chew during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Senegal's Ibrahima Diaw hits a shot against Singapore's Clarence Chew during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

France's Prithika Pavade eyes the ball as she serves to Russia's Yana Noskova during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

France's Prithika Pavade eyes the ball as she serves to Russia's Yana Noskova during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

France's Prithika Pavade eyes the ball as she serves to Russia's Yana Noskova during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

France's Prithika Pavade serves to Russia's Yana Noskova during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

France's Prithika Pavade hits a shot against Russia's Yana Noskova during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

France's Prithika Pavade hits a shot against Russia's Yana Noskova during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Russia's Yana Noskova serves to France's Prithika Pavade during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Russia's Yana Noskova serves to France's Prithika Pavade during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Russia's Yana Noskova serves to France's Prithika Pavade during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Croatia's Andrej Gacina eyes the ball as he serves to Togo's Dodji Fanny during their men's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Thailand's Orawan Paranang hits a shot against Puerto Rico's Melanie Diaz during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Puerto Rico's Melanie Diaz hits a shot against Thailand's Orawan Paranang during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Puerto Rico's Melanie Diaz serves to Thailand's Orawan Paranang during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by JUNG Yeon-je / AFP)

Poland's Natalia Partyka eyes the ball as she serves to Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Poland's Natalia Partyka eyes the ball as she serves to Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Poland's Natalia Partyka eyes the ball as she serves to Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Poland's Natalia Partyka eyes the ball as she serves to Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Poland's Natalia Partyka eyes the ball as she serves to Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Poland's Natalia Partyka hits a shot against Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Poland's Natalia Partyka hits a shot against Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)

Poland's Natalia Partyka serves to Australia's Michelle Bromley during their women's singles round 1 table tennis match at the Tokyo Metropolitan Gymnasium during the Tokyo 2020 Olympic Games in Tokyo on July 24, 2021. (Photo by Anne-Christine POUJOULAT / AFP)