Dominika Cibulkova, of Slovakia, celebrates after defeating 3-6, 7-6 (5), 6-3 Agnieszka Radwanska, of Poland, at the Sony Open Tennis tournament in Key Biscayne, Fla., Wednesday, March 26, 2014. (AP Photo/Alan Diaz)

Key Biscayne Tennis

Dominika Cibulkova, of Slovakia, celebrates after defeating 3-6, 7-6 (5), 6-3 Agnieszka Radwanska, of Poland, at the Sony Open Tennis tournament in Key Biscayne, Fla., Wednesday, March 26, 2014. (AP Photo/Alan Diaz)

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