Marion Bartoli pulled out during her third-round match against Magdalena Rybarikova at the Rogers Cup.
Marion Bartoli pulled out during her third-round match against Magdalena Rybarikova at the Rogers Cup.
Andy Lyons/Getty Images

TORONTO (AP) -- Wimbledon champion Marion Bartoli retired because of an abdominal injury early in the second set of her third-round Rogers Cup match against Slovakia's Magdalena Rybarikova on Thursday

Rybarikova led 7-6 (5), 1-0 when the seventh-seeded Bartoli stopped playing.

Playing her first event since returning from a hamstring injury that sidelined her since her major victory in London, Bartoli was in obvious discomfort as she walked to the player bench area, where she had a trainer stretch her arm and leg. On Wednesday, she beat American qualifier Lauren Davis 6-0, 6-3.

Earlier, fourth-seeded Li Na of China fought back from a three-game deficit in the final set for a 3-6, 6-1, 7-6 (5) victory over Serbia's Ana Ivanovic.

Third-seeded Agnieszka Radwanska of Poland also advanced to the quarterfinals, beating American Sloane Stephens 6-1, 7-6 (2). Fifth-seeded Sara Errani of Italy beat Alize Cornet of France 7-5, 7-6 (3).

Top-seeded Serena Williams faced Kirsten Flipkens of Belgium.

Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.