Osaka, Japan, Oct 12: Third-seeded Angelique Kerber of Germany advanced to the quarterfinals of the Japan Open on Wednesday with a 6-1, 6-3 victory over Olga Govortsova of Belarus.
In other second-round action at the Utsubo Tennis Center, fourth-seeded Petra Cetkovska of the Czech Republic beat Erika Sema of Japan 6-0, 6-3, Jie Zheng of China upset fifth-seeded Jarmila Gajdosova of Australia 7-5, 6-3, while defending champion Tamarine Tanasugarn of Thailand defeated Mathilde Johansson of France 6-2, 6-4.
In a first-round match, Vania King of the United States edged out compatriot Jill Craybas 6-1, 3-6, 6-1.
U.S. Open champion Sam Stosur of Australia will meet Misaki Doi of Japan in a second-round match on Thursday.
