Kim Clijsters of Belgium pauses during her match with Laura Robson of Great Britain in the second round of play at the 2012 US Open tennis tournament,  Wednesday, Aug. 29, 2012, in New York. (AP Photo/Mel C. Evans)

Photo by: Mel C. Evans

Kim Clijsters of Belgium pauses during her match with Laura Robson of Great Britain in the second round of play at the 2012 US Open tennis tournament, Wednesday, Aug. 29, 2012, in New York. (AP Photo/Mel C. Evans)