Serena Williams, right, of the United States, and Li Na, of China, pose for photos after the trophy presentation for the women's final at the Sony Open Tennis tournament in Key Biscayne, Fla., Saturday, March 29, 2014. Williams won 7-5, 6-1. (AP Photo/Alan Diaz)

Key Biscayne Tennis

Serena Williams, right, of the United States, and Li Na, of China, pose for photos after the trophy presentation for the women's final at the Sony Open Tennis tournament in Key Biscayne, Fla., Saturday, March 29, 2014. Williams won 7-5, 6-1. (AP Photo/Alan Diaz)

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