Argentina's Gaston Alto hits a shot against Spain's Alvaro Robles during his 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)

Argentina's Gaston Alto hits a shot against Spain's Alvaro Robles during his 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)

Argentina's Gaston Alto eyes the ball as he serves to Spain's Alvaro Robles during his 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)

Spain's Alvaro Robles hits a shot against Argentina's Gaston Alto during his 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)

Spain's Alvaro Robles hits a shot against Argentina's Gaston Alto during his 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)

Spain's Alvaro Robles eyes the ball as he serves to Argentina's Gaston Alto during his 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)

An overview image shows Argentina's Gaston Alto (TOP) and Spain's Alvaro Robles (BOTTOM) waiting for the table to be cleaned to continue with 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 / POOL / AFP)

An overview image shows Argentina's Gaston Alto (TOP) and Spain's Alvaro Robles competing 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 / POOL / AFP)

Australia's Jian Fang Lay eyes the ball as she serves to Italy's Debora Vivarelli 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)

Australia's Jian Fang Lay celebrates winning a point to Italy's Debora Vivarelli 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)

Australia's Jian Fang Lay hits a shot against Italy's Debora Vivarelli 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)

Spain's Maria Xiao eyes the ball as she serves to Kazakhstan's Anastassiya Lavrova 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)

Spain's Maria Xiao eyes the ball as she serves to Kazakhstan's Anastassiya Lavrova 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)

Ecuador's Alberto Mino hits a shot against USA's Nikhil Kumar 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)

Ecuador's Alberto Mino hits a shot against USA's Nikhil Kumar 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)

Ecuador's Alberto Mino hits a shot against USA's Nikhil Kumar 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)

Ecuador's Alberto Mino hits a shot against USA's Nikhil Kumar 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)

Bulgaria's Polina Trifonova eyes the ball as she serves to Luxemburg's Sarah De Nutte 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)

Bulgaria's Polina Trifonova eyes the ball as she serves to Luxemburg's Sarah De Nutte 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)

Bulgaria's Polina Trifonova eyes the ball as she serves to Luxemburg's Sarah De Nutte 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)

Bulgaria's Polina Trifonova eyes the ball as she serves to Luxemburg's Sarah De Nutte 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)

Bulgaria's Polina Trifonova eyes the ball as she serves to Luxemburg's Sarah De Nutte 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)

Luxemburg's Sarah De Nutte serves to Bulgaria's Polina Trifonova 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)

Luxemburg's Sarah De Nutte hits a shot against Bulgaria's Polina Trifonova 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)

Luxemburg's Sarah De Nutte hits a shot against Bulgaria's Polina Trifonova 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)

Luxemburg's Sarah De Nutte hits a shot against Bulgaria's Polina Trifonova 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)

Luxemburg's Sarah De Nutte serves to Bulgaria's Polina Trifonova 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)

Luxemburg's Sarah De Nutte serves to Bulgaria's Polina Trifonova 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)

Luxemburg's Sarah De Nutte serves to Bulgaria's Polina Trifonova 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)

USA's Nikhil Kumar eyes the ball as he serves to Ecuador's Alberto Mino 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)

USA's Nikhil Kumar eyes the ball as he serves to Ecuador's Alberto Mino 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)

USA's Nikhil Kumar hits a shot against Ecuador's Alberto Mino 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)

Hungary's Bence Majoros (L) serves to Algeria's Larbi Bouriah 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)

Hungary's Bence Majoros serves to Algeria's Larbi Bouriah 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)

Hungary's Bence Majoros serves to Algeria's Larbi Bouriah 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)

Hungary's Bence Majoros (L) serves to Algeria's Larbi Bouriah 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)

Algeria's Larbi Bouriah hits a shot against Hungary's Bence Majoros 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)

Algeria's Larbi Bouriah hits a shot against Hungary's Bence Majoros 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)

Ukraine's Ganna Gaponova hits a shot against Austria's Jia Liu 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)

An overview image shows USA's Nikhil Kumar (TOP) competing against Ecuador's Alberto Mino 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 / POOL / AFP)

Christina Kallberg, of Sweden serves the ball during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Lily Zhang, of United States walks with a sports tape on her leg during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Adriana Diaz, of Puerto Rico smiles to camera during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Team members of United States practice during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Spain's Alvaro Robles serves a ball during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Athletes practice during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Hugo Calderano, of Brazil returns a ball during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Paul Drinkhall, of Britain returns a ball during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Cheng I-ching, front, and Lin Yun-ju of Taiwan practice during a table tennis training session at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kin Cheung)

Maria Fazekas, of Hungary, attends a table tennis training session at the Tokyo Metropolitan Gymnasium at the 2020 Summer Olympics, Thursday, July 22, 2021, in Tokyo, Japan. (AP Photo/Petr David Josek), APTOPIX

210722 -- TOKYO, July 22, 2021 -- German Table tennis, Tischtennis player Dimitrij Ovtcharov up trains at the Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 22, 2021. TOKYO2020JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210722 -- TOKYO, July 22, 2021 -- A staff member works at the Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 22, 2021. TOKYO2020JAPAN-TOKYO-OLY Table tennis, Tischtennis TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210722 -- TOKYO, July 22, 2021 -- Table tennis, Tischtennis players train at the Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 22, 2021. TOKYO2020JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210722 -- TOKYO, July 22, 2021 -- Table tennis, Tischtennis players train at the Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 22, 2021. TOKYO2020JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

Sport Bilder des Tages 210722 -- TOKYO, July 22, 2021 -- German Table tennis, Tischtennis player Dimitrij Ovtcharov up trains at the Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 22, 2021. TOKYO2020JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

TOPSHOT - Table tennis players practice during a table tennis training session at the Tokyo Metropolitan Gymnasium, in Tokyo, on July 21, 2021, ahead of the Tokyo 2020 Olympic Games. (Photo by Jung Yeon-je / AFP)

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Liu Shiwen R and Xu Xin attend a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

Miu Hirano (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

210721 -- TOKYO, July 21, 2021 -- Table tennis, Tischtennis players from China and Japan attend a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 XHTP-JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Ma long reacts during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

(L-R) Hina Hayata, Miu Hirano (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

& Jun Mizutani & Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

& Jun Mizutani & Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Koki Niwa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

(L-R) Kasumi Ishikawa, Mima Ito, Miu Hirano (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

& Jun Mizutani & Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

& Jun Mizutani & Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

(L-R) Kasumi Ishikawa, Hina Hayata (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Hina Hayata, JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

General view, JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Kasumi Ishikawa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Tomokazu Harimoto (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Hina Hayata, JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Hina Hayata, JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Tomokazu Harimoto (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Kasumi Ishikawa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Kasumi Ishikawa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Kasumi Ishikawa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Kasumi Ishikawa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Kasumi Ishikawa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Kasumi Ishikawa (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Tomokazu Harimoto (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Tomokazu Harimoto (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Jun Mizutani (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Tomokazu Harimoto (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Tomokazu Harimoto (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Ma Long (CHN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Miu Hirano (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Miu Hirano (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Miu Hirano (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Miu Hirano (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

Mima Ito (JPN), JULY 21, 2021 - Table Tennis : Official training before the Tokyo 2020 Olympic Games at the Tokyo Metropolitan Gymnasium in Tokyo, Japan. (Photo by Naoki Nishimura/AFLO SPORT)

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Ma Long attends a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Ma Long reacts during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Wang Hao, Table tennis, Tischtennis coach of Chinese team is seen during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING PanxYulong PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Ma Long reacts during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Sun Yingsha attends a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Sun Yingsha serves during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Xu Xin serves during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING PanxYulong PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Liu Shiwen serves during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Chen Meng is seen during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis players Liu ShiwenR and Xu xin attend a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Ma Long wears a mask during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Ma Long attends a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING PanxYulong PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Chen Meng attends a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Liu Shiwen serves during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- President of the Chinese Table tennis, Tischtennis Association Liu Guoliang is seen during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

210721 -- TOKYO, July 21, 2021 -- Chinese Table tennis, Tischtennis player Ma Long reacts during a training session ahead of the Tokyo 2020 Olympic Games, Olympische Spiele, Olympia, OS at Tokyo Metropolitan Gymnasium in Tokyo, Japan, July 21, 2021. TOKYO2020 JAPAN-TOKYO-OLY-TABLE TENNIS-TRAINING WangxDongzhen PUBLICATIONxNOTxINxCHN

General view, July 19, 2021 - Table Tennis : Official training at Tokyo Metropolitan Gymnasium before the Tokyo 2020 Olympic Games in Tokyo, Japan. (Photo by Itaru Chiba/AFLO)

Jun Mizutani (JPN), July 19, 2021 - Table Tennis : Official training at Tokyo Metropolitan Gymnasium before the Tokyo 2020 Olympic Games in Tokyo, Japan. (Photo by Itaru Chiba/AFLO)

Mima Ito (JPN), July 19, 2021 - Table Tennis : Official training at Tokyo Metropolitan Gymnasium before the Tokyo 2020 Olympic Games in Tokyo, Japan. (Photo by Itaru Chiba/AFLO)

Mima Ito (JPN), July 19, 2021 - Table Tennis : Official training at Tokyo Metropolitan Gymnasium before the Tokyo 2020 Olympic Games in Tokyo, Japan. (Photo by Itaru Chiba/AFLO)

Jun Mizutani (JPN), July 19, 2021 - Table Tennis : Official training at Tokyo Metropolitan Gymnasium before the Tokyo 2020 Olympic Games in Tokyo, Japan. (Photo by Itaru Chiba/AFLO)