BEIJING, Sept. 19 -- Top seed Jelena Jankovic blazed into the quarterfinals of the Pan Pacific Open in Tokyo with a crushing 6-2, 6-1 victory over Italian Flavia Pennetta yesterday. But fellow Serb Ana Ivanovic suffered a shock exit when the French Open champion was upset 6-1, 1-6, 6-2 by Russian Nadia Petrova in her opening match on the shore of Tokyo Bay.

Jankovic, beaten by Serena Williams in the US Open final earlier this month, will recapture the world No. 1 ranking from the American if she wins in Japan.

She overpowered Pennetta in a match played under a closed roof because of an approaching typhoon, wrapping up an easy win with an ace after just 61 minutes.

"I would like to be No. 1 again," Jankovic told reporters. "But the most important thing is to finish the year as the No. 1 player."

Ana Ivanovic of Serbia celebrates winning the match against Vera Dushevina of Russia at the U.S. Open tennis tournament in Flushing Meadows, New York August 26, 2008

Jankovic faces Russian Svetlana Kuznetsova next after the fifth seed blew away Japan's Ayumi Morita 6-1, 6-1. Second seed Ivanovic, who had declared herself fully fit after withdrawing from last month's Beijing Olympics with a thumb injury, lost after an error-strewn performance.

"I haven't played many matches so I'm happy to get back playing again," she said. "It was obviously frustrating but the surface was very fast and she was going for her shots."

【体坛英语资讯：Jankovic eases through but Ivanovic exits】相关文章：

★ 娱乐英语资讯：Jolie, Pitt officially adopt Pax Thien

★ 体坛英语资讯：ZZ leads New Years Eve charge against Iraq

★ 娱乐英语资讯：DiCaprios Romeo and Juliet tops movie tear-jerkers list

★ 体坛英语资讯：Capello greeted with cheers and jeers

★ 体坛英语资讯：Hosts China struggle into quarter-finals

★ 娱乐英语资讯：Mandy Moore plans peaceful life in France

★ 体坛英语资讯：Bitter battles about the rights to athletes

★ 娱乐英语资讯：Sharon Stone apologizes over karma remarks

★ 体坛英语资讯：Sprinter Gay, swimmer Hoff win top US honours

★ 娱乐英语资讯：K-Feds lawyer wants Spears to pay bill