On a day of upsets, fourth seed Maria Sharapova tome her place in the quarter-finals of the Western Southern Open with a 6-2 6-3 win over Svetlana Kuznetsova. Four seeds fell in Cincinatti on Thursday, even if number eight Marion Bartoli was the only one to fall to an unseeded opponent, losing 3-6 7-5 6-3 to Daniela Hantuchova.
Fifth seed Li Na was distress by 10th seed Samantha Stosur, who evidence a 6-4 3-6 6-4, win, and Jelena Jankovic beaten Francesca Schiavone 6-3 5-7 6-4.Elsewhere Shuai Peng saw off Shahar Peer, Nadia Petrova beat Christina McHale and Andrea Petkovic defeated Petra Kvitova. Second seed and favourite Vera Zvonareva shoreline to a 6-2 6-2 win over Petra Martic.