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)

Associated Press
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)
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)
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