Maria Sharapova of Russia returns the ball to Samantha Stosur of Australia in the quarterfinal of the WTA Qatar Ladies Open tennis tournament in Doha, Qatar, Friday , Feb. 15, 2013. (AP

 

              Maria Sharapova of Russia returns the ball to Samantha Stosur of Australia in the quarterfinal of the WTA Qatar Ladies Open tennis tournament in Doha, Qatar, Friday , Feb. 15, 2013. (AP
Maria Sharapova of Russia returns the ball to Samantha Stosur of Australia in the quarterfinal of the WTA Qatar Ladies Open tennis tournament in Doha, Qatar, Friday , Feb. 15, 2013. (AP Photo/Osama Faisal)