TORONTO — Top-seeded Serena Williams eased into the Rogers Cup semifinals Friday night, overpowering Slovakia's Magdalena Rybarikova 6-1, 6-1.
Williams, coming off a seventh tournament victory of the last month in the Swedish Open, had seven aces and finished off Rybarikova in 60 minutes, 5 seconds.
"I'm definitely feeling pretty good, playing much better than I have the past month I would say," Williams said. "I'm glad I'm getting back to the feeling and getting into some rhythm."
The two-time Rogers Cup champion will face third-seeded Agnieszka Radwanska of Poland, a 7-6 (1), 7-5 winner over fifth-seeded Sara Errani of Italy.
"It's a good matchup," Williams said. "She does everything so well. She's playing better too actually so she's having a much better year. It's going to be an interesting match. It's definitely not going to be easy. I can only hope that I play well and I can only hope that I come out on top."
In the other quarterfinals, fourth-seeded Li Na of China beat Slovakia's Dominika Cibulkova 7-6 (1), 6-2; and Romania's Sorana Cirstea upset sixth-seeded defending champion Petra Kvitova of the Czech Republic 4-6, 7-5, 6-2.
Radwanska earned a measure of revenge after she was eliminated by Errani in the French Open quarterfinals.
Radwanska and Errani traded breaks virtually the entire first set before Radwanska took the tiebreaker after a smooth volley drop and wide return from Errani on set point. The two players again traded breaks in the second set until Radwanska held serve at 6-5 when Errani returned long on double match point.