India's Sania Mirza [Images], who upset former world number one Martina Hingis [Images] on Tuesday, advanced in the doubles draw as well at the East West Bank Classic in Los Angeles on Wednesday evening.

Sania and American partner Bethanie Mattek [Images] faced a tough opening challenge, before they prevailed 6-3, 2-6, 11-9 over Slovakia's Janette Husarova and Dutchwoman Michaella Krajicek.

The Indo-American duo will face second seeds Rannae Stubbs and Kveta Peschke in the quarter-finals.

In singles, Sania will play France's [Images] Virginie Razzano in the third round.

Razzano beat tenth seed Shahar Peer of Israel 6-1, 4-6, 7-6(6) in the second round on Wednesday.

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