Pacific West Open : Mirza-Mattek in Doubles Semifinal

Sania Mirza and her American partner Bethanie Mattek stunned formidable Taipei duo of Yung-Jan Chan and Chia-Jung Chuang to book a doubles semifinal berth at the $2.1 Million Pacific Life Open championships here.

The Indo-US duo prevailed 7-5 4-6 11-9 in a gruelling quarterfinal encounter of the Tier I event, Wednesday night.

Chuang and Chan are world number 9 and 10 while Sania and Mattek stand at 25 and 36 in the WTA ranking, respectively.

The winners next take on Chinese 3rd-seed pair of Zi Yan and Jie Zheng, who defeated Czech-Polish combine of Iveta Benesova and Agnieszka Radwanska 6-0 6-4.