Vania King, of the United States, returns to Lucie Safarova, of the Czech Republic, during a match at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 20, 2014. (AP Photo/Alan Diaz)

Sony Open Tennis

Vania King, of the United States, returns to Lucie Safarova, of the Czech Republic, during a match at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 20, 2014. (AP Photo/Alan Diaz)

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