Li Na rallies past Keys in 3rd round at Sony Open

Li Na, of China, returns to Madison Keys at the Sony Open tennis tournament in Key Biscayne, Fla., Sunday, March 23, 2014. (AP Photo/Alan Diaz)

Li Na, of China, returns to Madison Keys at the Sony Open tennis tournament in Key Biscayne, Fla., Sunday, March 23, 2014. (AP Photo/Alan Diaz)

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