Jelena Jankovic of Serbia serves to Kateryna Bondarenko of Ukraine during their women's singles match at the U.S. Open tennis tournament in New York August 28, 2012. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine hits a return to Jelena Jankovic of Serbia during their women's singles match at the U.S. Open tennis tournament in New York August 28, 2012. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine hits a return to Jelena Jankovic of Serbia during their women's singles match at the U.S. Open tennis tournament in New York August 28, 2012. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT TENNIS)

Jelena Jankovic of Serbia hits a return to Kateryna Bondarenko of Ukraine during their women's singles match at the U.S. Open tennis tournament in New York August 28, 2012. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine hits a return to Jelena Jankovic of Serbia during their women's singles match at the U.S. Open tennis tournament in New York August 28, 2012. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT TENNIS)

Children wait for autographs from Czech Republic's Petra Kvitova after her women's singles tennis match against Ukraine's Kateryna Bondarenko at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Czech Republic's Petra Kvitova returns to Ukraine's Kateryna Bondarenko in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Czech Republic's Petra Kvitova returns to Ukraine's Kateryna Bondarenko in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Ukraine's Kateryna Bondarenko returns to Czech Republic's Petra Kvitova in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Ukraine's Kateryna Bondarenko serves to Czech Republic's Petra Kvitova in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Ukraine's Kateryna Bondarenko serves to Czech Republic's Petra Kvitova in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Czech Republic's Petra Kvitova serves to Ukraine's Kateryna Bondarenko in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Czech Republic's Petra Kvitova returns to Ukraine's Kateryna Bondarenko in their women's singles tennis match at the All England Lawn Tennis Club during the London 2012 Olympic Games July 28, 2012. REUTERS/Lucy Nicholson (BRITAIN - Tags: OLYMPICS SPORT TENNIS)

Ana Ivanovic of Serbia hits a return to Kateryna Bondarenko of Ukraine during their women's singles tennis match at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Ana Ivanovic of Serbia celebrates winning a game in her women's singles tennis match against Kateryna Bondarenko of Ukraine at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Ana Ivanovic of Serbia celebrates winning a game in her women's singles tennis match against Kateryna Bondarenko of Ukraine at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Ana Ivanovic of Serbia celebrates after defeating Kateryna Bondarenko of Ukraine in their women's singles tennis match at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine hits a return to Ana Ivanovic of Serbia during their women's singles tennis match at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Ana Ivanovic of Serbia hits a return to Kateryna Bondarenko of Ukraine during their women's singles tennis match at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Ana Ivanovic of Serbia reacts to winning the first set during her women's singles tennis match against Kateryna Bondarenko of Ukraine at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Ana Ivanovic of Serbia hits a return to Kateryna Bondarenko of Ukraine during their women's singles tennis match at the Wimbledon tennis championships in London June 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT TENNIS)

Kimiko Date-Krumm of Japan serves to Kateryna Bondarenko of Ukraine in their women's singles tennis match at the Wimbledon tennis championships in London June 27, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Kimiko Date-Krumm of Japan reacts during her women's singles tennis match against Kateryna Bondarenko of Ukraine at the Wimbledon tennis championships in London June 27, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Kimiko Date-Krumm of Japan hits a return to Kateryna Bondarenko of Ukraine in their women's singles tennis match at the Wimbledon tennis championships in London June 27, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Chan Yung-Jan of Taiwan returns the ball to Kateryna Bondarenko of Ukraine during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Chan Yung-Jan of Taiwan returns the ball to Kateryna Bondarenko of Ukraine during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Chan Yung-Jan of Taiwan returns the ball to Kateryna Bondarenko of Ukraine during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Chan Yung-Jan of Taiwan returns the ball to Kateryna Bondarenko of Ukraine during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine returns the ball to Chan Yung-Jan of Taiwan during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine serves to Chan Yung-Jan of Taiwan during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine reacts during her match against Chan Yung-Jan of Taiwan during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Kateryna Bondarenko of Ukraine reacts during her match against Chan Yung-Jan of Taiwan during the French Open tennis tournament at the Roland Garros stadium in Paris May 28, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

Vera Zvonareva of Russia hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia celebrates a point against Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia breaks strings on her racquet as she hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

REFILE - CAPTION CORRECTION - Kateryna Bondarenko of Ukraine hits a return to Vera Zvonareva of Russia during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia hits a serve to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Vera Zvonareva of Russia hits a return to Kateryna Bondarenko of Ukraine during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine hits a return to Vera Zvonareva of Russia during their match at the U.S. Open tennis tournament in New York, August 31, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine returns the ball to Rebecca Marino of Canada during the French Open tennis tournament at the Roland Garros stadium in Paris, May 22, 2011. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS)

Peng Shuai of China hits a shot to Kateryna Bondarenko of Ukraine during their match at the Australian Open tennis tournament in Melbourne January 18, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS IMAGE OF THE DAY TOP PICTURE) 

Peng Shuai of China reacts in her match against Kateryna Bondarenko of Ukraine at the Australian Open tennis tournament in Melbourne January 18, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Peng Shuai of China gestures in her match against Kateryna Bondarenko of Ukraine at the Australian Open tennis tournament in Melbourne January 18, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Peng Shuai of China hits a shot to Kateryna Bondarenko of Ukraine during their match at the Australian Open tennis tournament in Melbourne January 18, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Peng Shuai of China serves to Kateryna Bondarenko of Ukraine during their match at the Australian Open tennis tournament in Melbourne January 18, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine serves to Peng Shuai of China during their match at the Australian Open tennis tournament in Melbourne January 18, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine adjusts her necklance during her match against Peng Shuai of China at the Australian Open tennis tournament in Melbourne January 18, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine celebrates her win over Li Na of China during the U.S. Open tennis tournament in New York, August 31, 2010. REUTERS/Kevin Lamarque (UNITED STATES - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine celebrates her win over Li Na of China during the U.S. Open tennis tournament in New York, August 31, 2010. REUTERS/Kevin Lamarque (UNITED STATES - Tags: SPORT TENNIS) 

Li Na of China hits a return to Kateryna Bondarenko of Ukraine during the U.S. Open tennis tournament in New York, August 31, 2010. REUTERS/Kevin Lamarque (UNITED STATES - Tags: SPORT TENNIS) 

Li Na of China hits a return to Kateryna Bondarenko of Ukraine during the U.S. Open tennis tournament in New York, August 31, 2010. REUTERS/Kevin Lamarque (UNITED STATES - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine hits a return to Li Na of China during the U.S. Open tennis tournament in New York, August 31, 2010. REUTERS/Kevin Lamarque (UNITED STATES - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine sports a tattoo during her match against Aleksandra Wozniak of Canada at the French Open tennis tournament at Roland Garros in Paris, May 27, 2010. REUTERS/Bogdan Cristel (FRANCE - Tags: SPORT TENNIS) 

Aleksandra Wozniak of Canada plays a shot during her match against Kateryna Bondarenko of Ukraine at the French Open tennis tournament at Roland Garros in Paris May 27, 2010. REUTERS/Bogdan Cristel (FRANCE - Tags: SPORT TENNIS) 

Kateryna Bondarenko of Ukraine plays a shot against Aleksandra Wozniak of Canada at the French Open tennis tournament at Roland Garros in Paris May 27, 2010. REUTERS/Bogdan Cristel (FRANCE - Tags: SPORT TENNIS)