Tomas Berdych, of the Czech Republic, returns to Alexandr Dolgopolov, of Ukraine, at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 27, 2014. (AP Photo/Alan Diaz)

Key Biscayne Tennis

Tomas Berdych, of the Czech Republic, returns to Alexandr Dolgopolov, of Ukraine, at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 27, 2014. (AP Photo/Alan Diaz)

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