Top seed at the Pilot Pen Tennis at Yale, Caroline Wozniacki, didn’t even have to play her quarterfinal match as Flavia Pennetta withdrew with a right foot injury. The Dane’s opponent in the semifinals will be No.4 seed Elena Dementieva who fought for exactly three hours to defeat No.6 seed Marion Bartoli 6-3 3-6 6-2.
Second seed Samantha Stosur was quickly beaten by seed No.7 Nadia Petrova, 6-2 6-1 in just 53 minutes. Stosur started the match by breaking Petrova’s serve, but from then on Petrova lost just three points in her other six service games and broke Stosur five times. Petrova now has 4-0 head-to-head record against Stosur, and all her wins came in straight sets (actually, she has never lost more than three games in any of those sets).
Maria Kirilenko will be Petrova’s opponent in the semifinals. Kirilenko advanced with a 6-3 6-3 win over Dinara Safina. After the match Kirilenko commented on Safina’s weakened game: "Before she was more aggressive, but now she's making longer points, and it's not hurting you as much." (source: Sony Ericsson WTA Tour, photo: Ralf Reinecke)