Aravane Rezai of France hits a return to Petra Kvitova of Czech Republic during their women's singles match at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2013. REUTERS/Philippe Wojazer (FRANCE - Tags: SPORT TENNIS)

Petra Kvitova of Czech Republic serves to Aravane Rezai of France during their women's singles match at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2013. REUTERS/Philippe Wojazer (FRANCE - Tags: SPORT TENNIS)

Aravane Rezai of France serves to Petra Kvitova of Czech Republic during their women's singles match at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2013. REUTERS/Philippe Wojazer (FRANCE - Tags: SPORT TENNIS)

Petra Kvitova of Czech Republic serves to Aravane Rezai of France during their women's singles match at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2013. REUTERS/Philippe Wojazer (FRANCE - Tags: SPORT TENNIS)

Former French tennis player Aravane Rezai attends the Davis Cup world group round 1 tennis match between Israel's Amir Weintraub and France's Richard Gasquet in Rouen February 3, 2013. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS) 

Peng Shuai of China serves during her match against Aravane Rezai of France at the Rogers Cup tennis tournament in Montreal, August 8, 2012. REUTERS/Christinne Muschi (CANADA - Tags: SPORT TENNIS) 

Aravane Rezai of France hits a return during her match against Peng Shuai of China at the Rogers Cup tennis tournament in Montreal, August 8, 2012. REUTERS/Christinne Muschi (CANADA - Tags: SPORT TENNIS) 

Aravane Rezai of France serves during her match against Peng Shuai of China at the Rogers Cup tennis tournament in Montreal, August 8, 2012. REUTERS/Christinne Muschi (CANADA - Tags: SPORT TENNIS) 

Peng Shuai of China hits a return during her match against Aravane Rezai of France at the Rogers Cup tennis tournament in Montreal, August 8, 2012. REUTERS/Christinne Muschi (CANADA - Tags: SPORT TENNIS) 

Peng Shuai of China hits a return during her match against Aravane Rezai of France at the Rogers Cup tennis tournament in Montreal, August 8, 2012. REUTERS/Christinne Muschi (CANADA - Tags: SPORT TENNIS) 

Aravane Rezai of France reacts during her match against Irina-Camelia Begu of Romania during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Irina-Camelia Begu of Romania reacts during her match against Aravane Rezai of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Aravane Rezai of France returns the ball to Irina-Camelia Begu of Romania during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Irina-Camelia Begu of Romania returns the ball to Aravane Rezai of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Aravane Rezai of France returns the ball to Irina-Camelia Begu of Romania during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Irina-Camelia Begu of Romania servse to Aravane Rezai of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Aravane Rezai of France speaks to a medical personnel during her women's singles match against Peng Shuai of China at the Australian Open tennis tournament in Melbourne January 16, 2012. REUTERS/Mark Blinch (AUSTRALIA - Tags: SPORT TENNIS)

Peng Shuai of China hits a return to Aravane Rezai of France during their women's singles match at the Australian Open tennis tournament in Melbourne January 16, 2012. REUTERS/Mark Blinch (AUSTRALIA - Tags: SPORT TENNIS)

Peng Shuai of China celebrates defeating Aravane Rezai of France during their women's singles match at the Australian Open tennis tournament in Melbourne January 16, 2012. REUTERS/Mark Blinch (AUSTRALIA - Tags: SPORT TENNIS)

Peng Shuai of China hits a return to Aravane Rezai of France during their women's singles match at the Australian Open tennis tournament in Melbourne January 16, 2012. REUTERS/Mark Blinch (AUSTRALIA - Tags: SPORT TENNIS)

Peng Shuai of China hits a return to Aravane Rezai of France during their women's singles match at the Australian Open tennis tournament in Melbourne January 16, 2012. REUTERS/Mark Blinch (AUSTRALIA - Tags: SPORT TENNIS)

Aravane Rezai of France hits a return to Peng Shuai of China during their women's singles match at the Australian Open tennis tournament in Melbourne January 16, 2012. REUTERS/Mark Blinch (AUSTRALIA - Tags: SPORT TENNIS)

Aravane Rezai of France hits a return to Peng Shuai of China during their women's singles match at the Australian Open tennis tournament in Melbourne January 16, 2012. REUTERS/Mark Blinch (AUSTRALIA - Tags: SPORT TENNIS)

Aravane Rezai of France hits a return to Serena Williams of the U.S. at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Aravane Rezai of France reacts after being defeated by Serena Williams of the U.S. at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts after defeating Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS IMAGE OF THE DAY TOP PICTURE)

Serena Williams of the U.S. reacts after defeating Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Aravane Rezai of France reacts during her match against Serena Williams of the U.S. at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts after defeating Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS IMAGE OF THE DAY TOP PICTURE)

Serena Williams of the U.S. reacts after defeating Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. hits a return to Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS IMAGE OF THE DAY TOP PICTURE)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Aravane Rezai of France reacts during her match against Serena Williams of the U.S. at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts after defeating Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts after defeating Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. hits a return to Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. hits a return to Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. reacts during her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Aravane Rezai of France hits a return to Serena Williams of the U.S. at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Two spectators on Centre Court speak to each other during the match between Serena Williams of the U.S. and Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Two spectators on Centre Court speak to each other during the match between Serena Williams of the U.S. and Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS) 

Serena Williams of the U.S. hits a return to Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. hits a return to Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. hits a return to Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Serena Williams of the U.S. walks onto Centre Court for her match against Aravane Rezai of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Aravane Rezai of France removes her jacket before her match against Serena Williams of the U.S. at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Aravane Rezai of France arrives on Centre Court for her match against Serena Williams of the U.S. at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Elena Baltacha of Britain returns the ball during her International Women's Open tennis tournament match against Aravane Rezai of France in Eastbourne, southern England June 14, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS) 

Elena Baltacha of Britain reacts during her International Women's Open tennis tournament match against Aravane Rezai of France in Eastbourne, southern England June 14, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS) 

Irina-Camelia Begu of Romania returns the ball to Aravane Rezai of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 23, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Irina-Camelia Begu of Romania serves to Aravane Rezai of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 23, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Irina-Camelia Begu of Romania reacts during her match against Aravane Rezai of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 23, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Irina-Camelia Begu of Romania celebrates after winning her match against Aravane Rezai of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 23, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Aravane Rezai of France serves to Irina-Camelia Begu of Romania during the French Open tennis tournament at the Roland Garros stadium in Paris May 23, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)