![Jelena Jankovic, of Serbia, pumps her fist after defeating Tatiana Golovin, of France, in Rogers Cup Tennis semifinal action in Toronto, Canada, on Saturday, Aug. 18, 2007. (AP Photo/Frank Gunn,CP Stock Photo - Jelena Jankovic, of Serbia, pumps her fist after defeating Tatiana Golovin, of France, in Rogers Cup Tennis semifinal action in Toronto, Canada, on Saturday, Aug. 18, 2007. (AP Photo/Frank Gunn,CP Stock Photo -](https://c8.alamy.com/comp/2PB7FAA/jelena-jankovic-of-serbia-pumps-her-fist-after-defeating-tatiana-golovin-of-france-in-rogers-cup-tennis-semifinal-action-in-toronto-canada-on-saturday-aug-18-2007-ap-photofrank-gunncp-2PB7FAA.jpg)
Jelena Jankovic, of Serbia, pumps her fist after defeating Tatiana Golovin, of France, in Rogers Cup Tennis semifinal action in Toronto, Canada, on Saturday, Aug. 18, 2007. (AP Photo/Frank Gunn,CP Stock Photo -
![At U.S. Open, Former No. 1s Ana Ivanovic and Jelena Jankovic Fight to End Droughts - The New York Times At U.S. Open, Former No. 1s Ana Ivanovic and Jelena Jankovic Fight to End Droughts - The New York Times](https://static01.nyt.com/images/2012/08/29/sports/tennis/29serbians-600/29serbians-600-jumbo.jpg?quality=75&auto=webp&disable=upscale)
At U.S. Open, Former No. 1s Ana Ivanovic and Jelena Jankovic Fight to End Droughts - The New York Times
![Jelena Jankovic of Serbia hits a forehand to Simona Halep of Romania at the Rogers Cup tennis tournament in Toronto, Wednesday Aug. 12, 2015. (Frank Gunn/The Canadian Press via AP Stock Photo - Jelena Jankovic of Serbia hits a forehand to Simona Halep of Romania at the Rogers Cup tennis tournament in Toronto, Wednesday Aug. 12, 2015. (Frank Gunn/The Canadian Press via AP Stock Photo -](https://c8.alamy.com/comp/2P2J7DR/jelena-jankovic-of-serbia-hits-a-forehand-to-simona-halep-of-romania-at-the-rogers-cup-tennis-tournament-in-toronto-wednesday-aug-12-2015-frank-gunnthe-canadian-press-via-ap-2P2J7DR.jpg)
Jelena Jankovic of Serbia hits a forehand to Simona Halep of Romania at the Rogers Cup tennis tournament in Toronto, Wednesday Aug. 12, 2015. (Frank Gunn/The Canadian Press via AP Stock Photo -
![Aug. 6, 2011 - Toronto, Ontario, Canada - Belgrade Serbia's Jelena Jankovic returns a serve during the celebrity match at the Rogers Cup at the Rexall Centre at York University in Toronto. ( Aug. 6, 2011 - Toronto, Ontario, Canada - Belgrade Serbia's Jelena Jankovic returns a serve during the celebrity match at the Rogers Cup at the Rexall Centre at York University in Toronto. (](https://c8.alamy.com/comp/DK921N/aug-6-2011-toronto-ontario-canada-belgrade-serbias-jelena-jankovic-DK921N.jpg)
Aug. 6, 2011 - Toronto, Ontario, Canada - Belgrade Serbia's Jelena Jankovic returns a serve during the celebrity match at the Rogers Cup at the Rexall Centre at York University in Toronto. (
![Canada's Aleksandra Wozniak returns to Jelena Jankovic of Serbia, during their women's singles match at the All England Lawn Tennis Championships at Wimbledon, Wednesday, June 23, 2010. (AP Photo/Sang Tan Stock Photo - Canada's Aleksandra Wozniak returns to Jelena Jankovic of Serbia, during their women's singles match at the All England Lawn Tennis Championships at Wimbledon, Wednesday, June 23, 2010. (AP Photo/Sang Tan Stock Photo -](https://c8.alamy.com/comp/2NDGTG2/canadas-aleksandra-wozniak-returns-to-jelena-jankovic-of-serbia-during-their-womens-singles-match-at-the-all-england-lawn-tennis-championships-at-wimbledon-wednesday-june-23-2010-ap-photosang-tan-2NDGTG2.jpg)