Marinko Matosevic, of Australia, returns the ball to Alejandro Falla, of Colombia, during the Sony Open tennis tournament, Wednesday, March 19, 2014, in Key Biscayne, Fla. (AP Photo/Luis M. Alvarez)

Sony Open Tennis

Marinko Matosevic, of Australia, returns the ball to Alejandro Falla, of Colombia, during the Sony Open tennis tournament, Wednesday, March 19, 2014, in Key Biscayne, Fla. (AP Photo/Luis M. Alvarez)

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