Japanese third seed Ai Sugiyama fell at the first hurdle along with America's fifth-seeded Chanda Rubin and Jelena Jankovic, the eighth seed from Serbia and Montenegro.

"It was pathetic," said a disgusted Sugiyama after her defeat to compatriot Aoki Nakamura, nine years her junior and 151 places below her in the world rankings, at the 225,000-dollar Wismilak International.

"She takes the ball really early and she is attacking very well ... I should have performed well but it is not the best conditions for me."

Italy's Tathiana Garbin, ranked 59th in the world, had US star Rubin packing her bags after a whirlwind encounter which ended 6-1, 6-4.

"She played better than me, that is the most important thing," Rubin said after her error-strewn performance.

Meanwhile a fatigued Jankovic lost out 6-4, 2-6, 2-6 to home favourite Angelique Widjaja of Indonesia.

"In the second and third sets I saw she was tired. In fact I was tired too but pretended not to be," Widjaja said.

The upsets continued for South Korea's Yoon Jeong Cho, who beat Venezuelan sixth seed Maria Vento-Kabchi in the first round, as she took out Puerto Rico's 46th-ranked played Kristina Brandi 6-2, 4-6, 6-3.

In the day's other second-round match, seventh seed Gisela Dulko of Argentina recovered from losing the first set to beat emotional Italian Flavia Pennetta 4-6, 6-1, 7-5.

In the doubles, newly crowned US Open champion Svetlana Kuznetsova of Russia and Spain's Arantxa Sanchez-Vicario defeated Marta Domachowska of Poland and Russia's Galina Voskoboeva 6-4, 6-3.