Agnieszka Radwanska, of Poland, celebrates after winning her match against Serbia's Jelena Jankovic in the third round of play at the 2012 US Open tennis tournament, Saturday, Sept. 1, 2012, in New ... more 

Agnieszka Radwanska, of Poland, celebrates after winning her match against Serbia's Jelena Jankovic in the third round of play at the 2012 US Open tennis tournament, Saturday, Sept. 1, 2012, in New York. (AP Photo/Kathy Willens) less