TORONTO -- Top-seeded Serena Williams advanced to the Rogers Cup quarterfinals Thursday, beating 13th-seeded Kirsten Flipkens of Belgium 6-0, 6-3. Williams, coming off a tournament victory 2 1/2 weeks ago in the Swedish Open, set up a match Friday against Slovakias Magdalena Rybarikova. "She wasnt able to play her game as much as she wanted to," Williams said. "When you play such a high-ranked player, you have to go in there with the mindset of do the best you can before they can step all over you." Wimbledon champion Marion Bartoli retired because of an abdominal injury early in the second set of her match against Rybarikova. "Kind of excess of tiredness and exhaustion on my body," Bartoli said. "The pain is so large and we cant really say right now exactly (if) there is a tear at some point or if its just like a huge tightness." 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. "Everything that happened for me since a month (ago), its not without any tiredness," Bartoli said. "It took me so much energy to win my first Grand Slam that at some point I will have a kind of low and its normal. Im human. At the end of the day I cant be winning after winning after winning without feeling at some point a kind of exhaustion." 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 Serbias 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); and Romanias Sorana Cirstea edged Serbias Jelena Jankovic 6-3, 6-4. In late matches, sixth-seeded Petra Kvitova of the Czech Republic beat 12th-seeded Samantha Stosur of Australia 6-3, 6-3; and Slovakias Dominika Cibulkova topped 10th-seeded Roberta Vinci of Italy 6-3, 7-6 (4). Cedric Killings Jersey Store . A statement from the worlds top-ranked player says all checks "were satisfactory and showed positive evolution" regarding the injury, which contributed to his loss to Stanislas Wawrinka in the final in Melbourne. Dave Pacella Jersey Store . Two pressure cooker bombs exploded near the finish line of the April 15 race in an area packed with fans cheering the passing runners. Three people were killed and more than 260 injured, including at least 16 who lost limbs. https://www.chinacheapjerseys.net/emanuel-king-jersey-store/ . Kiriasis and brakeman Franziska Fritz finished two runs in one minute 55.41 seconds -- a mere 0.01 seconds ahead of Meyers and Lolo Jones, who likely bolstered her Olympic hopes by helping give USA-1 a huge push in the second heat. Alfred Malone Jersey Store .com) - Rafael Nadal, Andy Murray and Roger Federer were easy first-round winners Tuesday at the Australian Open. Ken Panfil Jersey Store . Thats about all he can do right now, so hes trying not to think about when he might be able to play again for the Los Angeles Lakers. North Melbourne have put public pressure on star onballer Daniel Wells as he considers his AFL future.Kangaroos chairman James Brayshaw said he would be disappointed if Wells left, saying the club had looked after the midfielder well while he was injured.Wells future is unclear after the Kangaroos ended their disappointing season on Saturday with a 62-point elimination final thumping from Adelaide.North have put a two-year offer to Wells, but there is strong speculation that Collingwood in particular are circling.Foot and Achilles tendon injuries meant Wells only played 10 games in 2014 and just two last season.He returned to full fitness and form this year with 19 senior matches.Brayshaw told Triple M radio that Wells had an offer in front of him from North for a long time.ddddddddddddI dont know whats holding that up, hes obviously having a look around otherwise he would have signed it, he added.It would be disappointing to lose him - firstly because I love him, always have.But secondly for the last three years hes been unbelievably well remunerated and played about four per cent of the games.Brayshaw also said he hoped Wells manager Liam Pickering would keep those circumstances in mind.Veterans Brent Harvey, Drew Petrie, Michael Firrito and Nick Dal Santo have played their last games for the Kangaroos. ' ' '