Serena Williams upest by Li Na

STUTTGART, Germany — Serena Williams' game collapsed after she swept the first set Wednesday, leaving her with a 0-6, 6-1, 6-4 loss to China's Li Na that will cost her the No. 1 ranking.

By dropping the second-round match at the Porsche Grand Prix, Williams will be overtaken by Jelena Jankovic when the new rankings come out Monday, the WTA said. Williams gained the top spot when she beat Jankovic in the U.S. Open final three weeks ago.

Li, ranked No. 30, upset Venus Williams in the quarterfinals of the Beijing Olympics.

Earlier, Patty Schnyder beat Svetlana Kuznetsova for the first time in more than three years and advanced to the second round of with a 6-4, 4-6, 7-5 victory over the fifth-seeded Russian.

Schnyder has a 3-5 record against Kuznetsova, whom she last beat at the German Open in Berlin in May 2005. Kuznetsova had won their last three matches.

"It was a real fight," the Schnyder said. "There were lots of winners and break points. She defended the baseline very well."

Schnyder, ranked No. 11, is seeking her second title of the year after winning in Bali. The Swiss left-hander has 11 career titles.

Kuznetsova was coming off a runner-up finish at the China Open, her fifth final defeat of the year, with no titles in 2008. She was No. 2 in the world one year ago.

Seventh-seeded Vera Zvonareva of Russia also advanced to the second round by beating Daniela Hantuchova of Slovakia 6-3, 6-2. Zvonareva won the Olympic bronze medal and then also won the tournament in Guangzhou, her second title of the year. Hantuchova was runner-up in Stuttgart in 2002.