CARSON, Calif. (AP) _ Jie Zheng of China upset 11th-seeded Shinobu Asagoe of Japan 6-7 (3), 6-3, 6-0 on Monday in the first round of the JPMorgan Chase Open.
Italy's Francesca Schiavone, the 13th seed, beat Dally Randriantefy of Madagascar 7-5, 6-3, 14th-seeded Gisela Dulko of Argentina defeated Fabiola Zuluaga of Colombia 6-3, 6-3, and 16th-seeded Anna Chakvetadze of Russia eliminated Li Na of China 7-5, 6-4.
Also, Russia's Maria Kirilenko ousted American Marissa Irvin 4-6, 7-5, 6-2, while Amy Frazier beat Abigail Spears 7-6 (6), 6-0 in an all-American match.
Kirilenko will play top-seeded Maria Sharapova on Tuesday. The 18-year-old Sharapova will become the first Russian player to reach No. 1 in the WTA rankings if she wins three matches here, the third stop in the women's U.S. Open Series.
World No. 1 Lindsay Davenport withdrew for the second week in a row due to back problems. Serena Williams and Vera Zvonareva also backed out this week because of ankle problems.