Ana Ivanovic, of Serbia, follows through on a shot against Dominika Cibulkova, of Slovakia, during the first round of the U.S. Open tennis tournament, Monday, Aug. 31, 2015, in New York. (AP ... more 
Ana Ivanovic, of Serbia, follows through on a shot against Dominika Cibulkova, of Slovakia, during the first round of the U.S. Open tennis tournament, Monday, Aug. 31, 2015, in New York. (AP Photo/Matt Rourke) less 
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Associated Press | Photo By Matt Rourke
Mon, Aug 31, 2015 12:39 PM EDT