Dutch skater Ireen Wust reacts in the 3000-meter race during the Olympic Qualification Tournament, in Heerenveen, December 27, 2013. She was placed for Sotchi. AFP PHOTO / ANP / VINCENT JANNINK ***netherlands out***

Winner Ireen Wust of the Netherlands poses with her gold medal after she win in the women's 3000 meter race, during the ISU World Single Distances Speed Skating Championships 2013 in Adler-Arena in Sochi, Russia, Thursday, March 21, 2013. (AP Photo/Mikhail Metzel)

Second placed Ireen Wust of the Netherlands reacts after the finish in the women's 1000 meter race, during the ISU World Single Distances Speed Skating Championships 2013 in Adler-Arena in Sochi, Russia, Saturday, March 23, 2013. (AP Photo/Mikhail Metzel)

(FILES) Photo dated June 13, 2003 shows then New Jersey Nets player Jason Collins reacting to a foul call during game 5 of the NBA Finals against the San Antonio Spurs in East Rutherford, New Jersey. Collins became the first active player in a major professional American team sport to reveal that he is gay, doing so to Sports Illustrated in a major cover story released on April 29, 2013. Collins, who is now a free agent, has played in the NBA for 12 seasons with six teams, spending this past campaign with the Boston Celtics and Washington Wizards. He helped the New Jersey Nets reach the 2002 and 2003 NBA Finals. AFP PHOTO/FILES/Don EMMERT

New Jersey Nets' Jason Collins is fouled as he drives to the basket while being defended by Dan Gadzuric of the Milwaukee Bucks during the first quarter of the game, Wednesday February 23, 2005 at the Bradley Center in Milwaukee, Wisconsin. (AP Photo by Ron Kuenstler)

Roland-Garros French Open. Martina Navratilova (born in 1956). Paris, 1984.

Martina Navratilova The annual "World TeamTennis Smash Hits" charity night of tennis in Cleveland for the first time in the event?.s 19-year history, held at Public Hall, Cleveland, OH, USA. October 27th, 2011 WTT half length athlete sport white skirt racket racquet glasses baseball cap hat CAP/ADM/JN ??Jason L Nelson/AdMedia/Capital Pictures Martina Navratilova The annual "World TeamTennis Smash Hits" charity night of tennis in Cleveland for the first time in the event???s 19-year history, held at Public Hall, Cleveland, OH, USA. October 27th, 2011 WTT half length athlete sport white skirt racket racquet glasses baseball cap hat CAP/ADM/JN ??Jason L Nelson/AdMedia/Capital Pictures

Billie Jean King, who did her thing against Boby Riggs is shown in Philadelphia Monday, Sep. 24 1973 as she came here to kick off the World Team Tennis League in which she's scheduled to be player-coach of the Philadelphia team. (AP Photo/wgi)

U.S. tennis player Billie Jean King returns the ball to volley against Elizabeth Starkie of Britain, during the singles match of the All England Lawn Championships at Wimbledon in London on June 24, 1965. (AP Photo)

Billie Jean King amuses the court audience by pulling a tennis ball from beneath her playing shorts on Tuesday, March 23, 1977 action against Sue Strap at San Antonio. Mrs. King recent surgery marks shows on her knees. (AP Photo)

Billie Jean King, who did her thing against Boby Riggs poses in front of a mirror in Philadelphia Monday, Sep. 24 1973 as she came here to kick off the World Team Tennis League in which she's scheduled to be player-coach of the Philadelphia team. .(AP Photo/wgi)

Veteran tennis star Billie Jean King reacts during a press conference in Boston on Tuesday, Feb. 8, 1983. King announced that she would be competing in the 1983 Virginia Slims Tournament which will be held in Boston March 14-20. The purse for the tournament is $150,000. (AP Photo/Elise Amendola)