Gisela Dulko of Argentina returns a shot against Maria Sharapova of Russia during their match at the Indian Wells WTA tennis tournament in Indian Wells, California, March 10, 2012. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT TENNIS) 

Maria Sharapova of Russia celebrates defeating Gisela Dulko of Argentina in their match at the Indian Wells WTA tennis tournament in Indian Wells, California, March 10, 2012. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT TENNIS) 

Maria Sharapova of Russia celebrates winning a point against Gisela Dulko of Argentina during their match at the Indian Wells WTA tennis tournament in Indian Wells, California, March 10, 2012. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT TENNIS) 

Maria Sharapova of Russia returns a shot against Gisela Dulko of Argentina during their match at the Indian Wells WTA tennis tournament in Indian Wells, California, March 10, 2012. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT TENNIS) 

Maria Sharapova of Russia returns a shot against Gisela Dulko of Argentina during their match at the Indian Wells WTA tennis tournament in Indian Wells, California, March 10, 2012. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT TENNIS) 

Maria Sharapova of Russia serves to Gisela Dulko of Argentina during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Gisela Dulko of Argentina hits a return to Maria Sharapova of Russia during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Maria Sharapova of Russia serves to Gisela Dulko of Argentina during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Maria Sharapova of Russia serves to Gisela Dulko of Argentina during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Maria Sharapova of Russia hits a return to Gisela Dulko of Argentina during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Maria Sharapova of Russia blows a kiss to the crowd after defeating Gisela Dulko of Argentina during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Maria Sharapova of Russia acknowledges the crowd after defeating Gisela Dulko of Argentina during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Maria Sharapova of Russia hits a return to Gisela Dulko of Argentina during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)

Liezel Huber of the U.S. serves near and her compatriot Lisa Raymond (front) during their WTA tennis championships doubles semi-final match against Argentina's Gisela Dulko and Italy's Flavia Pennetta in Istanbul October 29, 2011. REUTERS/Murad Sezer (TURKEY - Tags: SPORT TENNIS) 

Liezel Huber of the U.S. (rear) and her compatriot Lisa Raymond celebrate after defeating Argentina's Gisela Dulko and Italy's Flavia Pennetta during their WTA tennis championships doubles semi-final match in Istanbul October 29, 2011. REUTERS/Murad Sezer (TURKEY - Tags: SPORT TENNIS) 

Liezel Huber of the U.S. and her compatriot Lisa Raymond (R) celebrate after defeating Argentina's Gisela Dulko and Italy's Flavia Pennetta during their WTA tennis championships doubles semi-final match in Istanbul October 29, 2011. REUTERS/Murad Sezer (TURKEY - Tags: SPORT TENNIS) 

Victoria Azarenka of Belarus serves to Gisela Dulko of Argentina during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Victoria Azarenka of Belarus serves to Gisela Dulko of Argentina during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Victoria Azarenka of Belarus lunges to make a shot to Gisela Dulko of Argentina during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Victoria Azarenka of Belarus serves to Gisela Dulko of Argentina during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Victoria Azarenka of Belarus serves to Gisela Dulko of Argentina during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Victoria Azarenka of Belarus hits a return to Gisela Dulko of Argentina during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina serves to Victoria Azarenka of Belarus during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina serves to Victoria Azarenka of Belarus during their match at the U.S. Open tennis tournament in New York, September 1, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT TENNIS) 

Rebecca Marino of Canada reacts after her loss to Gisela Dulko of Argentina during their match at the U.S. Open tennis tournament in New York, August 30, 2011. REUTERS/Ray Stubblebine (UNITED STATES - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Marion Bartoli of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Marion Bartoli of France returns the ball to Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS) 

Marion Bartoli of France returns the ball to Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Marion Bartoli of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Marion Bartoli of France reacts during her match against Gisela Dulko of Argentina at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina reacts during her match against Marion Bartoli of France at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina sits after being injured during her match against Marion Bartoli of France at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina receives medical treatment during her match against Marion Bartoli of France at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina receives medical treatment during her match against Marion Bartoli of France at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Marion Bartoli of France serves to Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina receives medical treatment during her match against Marion Bartoli of France at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina receives medical treatment during her match against Marion Bartoli of France at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina (L) is comforted by Marion Bartoli of France after she abandoned her match during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina leaves the court after she abandoned her match against Marion Bartoli of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina (L) is comforted by Marion Bartoli of France after she abandoned her match during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina walks on the court after she abandoned her match against Marion Bartoli of France during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina (L) is comforted by Marion Bartoli of France after she abandoned her match during the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina receives medical treatment during her match against Marion Bartoli of France at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS) 

Marion Bartoli of France reacts during her match against Gisela Dulko of Argentina at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2011. REUTERS/Charles Platiau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina reacts after winning her match against Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Samantha Stosur of Australia reacts during her match against Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina holds a banner after winning her match against Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. The banner reads "for Mylo and Teo, it was worth it, I love them". REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Samantha Stosur of Australia reacts during her match against Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina reacts after winning her match against Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina reacts after winning her match against Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Samantha Stosur of Australia serves to Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Gisela Dulko of Argentina returns the ball to Samantha Stosur of Australia during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Samantha Stosur of Australia returns the ball to Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Samantha Stosur of Australia returns the ball to Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS) 

Samantha Stosur of Australia prepares to serve to Gisela Dulko of Argentina during the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2011. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT TENNIS)