Stanislas Wawrinka, of Switzerland, returns to  Daniel Gimeno-Traver, of Spain, at the Sony Open tennis tournament in Key Biscayne, Fla., Saturday, March 22, 2014. (AP Photo/Alan Diaz)

Sony Open Tennis

Stanislas Wawrinka, of Switzerland, returns to Daniel Gimeno-Traver, of Spain, at the Sony Open tennis tournament in Key Biscayne, Fla., Saturday, March 22, 2014. (AP Photo/Alan Diaz)

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