WTA ROGERS CUP 2013: Serena v Aggie, Li Na v Sorana

Serena Williams has already won 7 tournaments this year and is hoping to win an 8th at the WTA Rogers Cup in Toronto this week. In order to do this, she will need to get through Agnieska Radwanska in the semifinals and then either Sorana Cirstea or Li Na in the final. Defending Rogers Cup champion Petra Kvitova lost to Cirstea in a tough 3-set match, while last year's finalist Li Na beat Dominika Cibulkova. Serena followed up her win over Kirsten Flipkens by dispatching  Magdalena Rybarikova. Flipkens had beaten Serena's sister Venus on Tuesday in 3-sets but could not repeat that result against the World #1. Serena has lost a total of 10 games in 3 rounds (6 sets) of play this week and looks as sharp as she has all year. She has only lost 3 times all year (to Sloane Stephens in Melbourne, to Victoria Azarenka in Doha and to Sabine Lisicki at Wimbledon).