Agnieszka Radwanska, of Poland, returns the ball to Elena Vesnina, of Russia, during the Sony Open Tennis, Sunday, March 23, 2014, in Key Biscayne, Fla. (AP Photo/J Pat Carter)

Key Biscayne Tennis

Agnieszka Radwanska, of Poland, returns the ball to Elena Vesnina, of Russia, during the Sony Open Tennis, Sunday, March 23, 2014, in Key Biscayne, Fla. (AP Photo/J Pat Carter)

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