Eugenie Bouchard, of Canada, returns to Jelena Jankovic, of Serbia, during the Family Circle Cup tennis tournament in Charleston, S.C., Friday, April 4, 2014. (AP Photo/Mic Smith)
Jelena Jankovic, of Serbia, returns to Eugenie Bouchard, of Canada, during the Family Circle Cup tennis tournament in Charleston, S.C., Friday, April 4, 2014. (AP Photo/Mic Smith)
Jelena Jankovic, of Serbia, serves to Eugenie Bouchard, of Canada, during the Family Circle Cup tennis tournament in Charleston, S.C., Friday, April 4, 2014. (AP Photo/Mic Smith)
Eugenie Bouchard, of Canada, gestures during her match against Jelena Jankovic, of Serbia, during the Family Circle Cup tennis tournament in Charleston, S.C., Friday, April 4, 2014. (AP Photo/Mic Smith)
Jelena Jankovic, of Serbia, smiles during a match against Ajla Tomljanovic, of Croatia, at the Family Circle Cup tennis tournament in Charleston, S.C., Thursday, April 3, 2014. (AP Photo/Mic Smith)