Images from Thursday's action at the Rogers Cup in Toronto
Magdalena Rybarikova of Slovakia hits a return to Marion Bartoli of France during their women's tennis match at day four of the Rogers Cup tennis tournament in Toronto, August 8, 2013. Rybarikova won 7-6(5) 1-0 (Bartoli retired).MARK BLINCH/Reuters
Na Li (CHN) during Rogers Cup play against Ana Ivanovic (SRB) Aug 8, 2013. Li defeated Ivanovic 3-6 6-1 7-6(5) to advance in the tournament.Moe Doiron/The Globe and Mail
Ana Ivanovic of Serbia returns the ball against Li Na of China during third round women's Rogers Cup tennis action in Toronto on Thursday, August 8, 2013.Nathan Denette/The Canadian Press
Ana Ivanovic of Serbia returns a shot to Li Na of China during their women's tennis match at day four of the Rogers Cup tennis tournament in Toronto, August 8, 2013.MARK BLINCH/Reuters
Alize Cornet of France returns to Sara Errani during their women's tennis match at day four of the Rogers Cup tennis tournament in Toronto, August 8, 2013.MARK BLINCH/Reuters
Sara Errani of Italy hits a return to Alize Cornet of France during their women's tennis match at day four of the Rogers Cup tennis tournament in Toronto, August 8, 2013.MARK BLINCH/Reuters
Sara Errani of Italy returns the ball against Alize Cornet of France during third round women's Rogers Cup tennis action in Toronto on Thursday, August 8, 2013. Errani won 7-5 7-6(3).Nathan Denette/The Canadian Press
Agnieszka Radwanska of Poland serves a shot to Sloan Stephens of the U.S. during their women's tennis match at day four of the Rogers Cup tennis tournament in Toronto, August 8, 2013.MARK BLINCH/Reuters
Sloane Stephens of the U.S. reacts to losing a point against Agnieszka Radwanska of Poland during their women's tennis match at day four of the Rogers Cup tennis tournament in Toronto, August 8, 2013. Radwanska advanced with a 6-1 7-6(2) win.MARK BLINCH/Reuters
Serena Williams signs autographs after winning her match against Kirsten Flipkens Aug 8, 2013 at the Rogers Cup.Moe Doiron/The Globe and Mail
Serena Williams (USA) serves during Rogers Cup play against Kirsten Flipkens (BEL) Aug 8, 2013. Williams easily defeated Flipkens in straights to advance.Moe Doiron/The Globe and Mail
Serena Williams hits a return during a match against Francesca Schiavone at the Rogers Cup in Toronto Aug 7, 2013. Williams beat Schiavone in straight sets 6-3. 6-2.Moe Doiron/The Globe and Mail
Ana Ivanovic (left) congratulates Na Li following their match at the Rogers Cup Aug 8, 2013. Li defeated Ivanovic to advance in the tournament.Moe Doiron/The Globe and Mail