Maria Sharapova, of Russia, returns the ball to Kurumi Nara, of Japan, during the Sony Open tennis tournament, Thursday, March 20, 2014, in Key Biscayne, Fla. (AP Photo/Luis M. Alvarez)

Sony Open Tennis

Maria Sharapova, of Russia, returns the ball to Kurumi Nara, of Japan, during the Sony Open tennis tournament, Thursday, March 20, 2014, in Key Biscayne, Fla. (AP Photo/Luis M. Alvarez)

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