STANFORD, CALIFORNIA (TICKER)
-- Two more seeded players have been ousted at the $600,000 Bank of West Classic.
Olga Govortsova upset fifth-seeded Shahar Peer of Israel, 4-6, 7-5, 6-2, in second-round play Thursday.
In the match that followed, unseeded Sania Mirza of India earned a decisive 6-4, 6-1 win over the No. 6 seed Tatiana Golovin of France.
The hardcourt event has been the stage for three upsets in less than 24 hours. In Wednesday's late match, second-seeded Marion Bartoli of France was toppled by former Stanford standout Lilia Osterloh of the United States.
A qualifier, Govortsova will need to conquer another seeded player in the quarterfinals if she hopes to advance - third-seeded Daniela Hantuchova of Slovakia - on Friday.
Their only previous meeting came earlier this year on the grass at Birmingham, with Hantuchova posting a 6-2, 6-4 victory.
Mirza's quarterfinals foe will be fourth-seeded Patty Schnyder, a 7-5, 6-2 winner against Russian Yaroslava Shvedova on Thursday.
The Switzerland native has faced Mirza once before, winning in straight sets during the quarterfinals at Cincinnati last year.
In Thursday's late match, Anna Chakvetadze will look to continue her stellar year when she meets Eleni Daniilidou in the second round.
The top seed from Russia, Chakvetadze is playing her opening match after receiving a first-round bye.
The 20-year-old Chakvetadze claimed her fifth career title Sunday with an easy triumph over Akiko Morigami of Japan at the Western and Southern Financial Group Women's Open.
Ranked eighth in the world, Chakvetadze also claimed titles at Hobart and 's-Hertogenbosch this season.
Daniilidou is coming off a 4-6, 7-5, 6-1 triumph over American Amber Liu in the first round.
Chakvetadze or Daniilidou next will meet seventh-seeded Katarina Srebotnik of Slovakia in the quarterfinals.
First prize at this hardcourt event is $88,265.