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

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