PARIS — Venus Williams was knocked out of the French Open today, losing to fourth-seeded Jelena Jankovic 6-4, 4-6, 6-1 in the third round.

Williams, who reached the final at Roland Garros in 2002 but missed the last two Grand Slam tournaments because of injuries, also lost to Jankovic in the third round at Wimbledon last year.

"I got a little bit tired at the end," Williams said. "It's tough on clay."

The 22-year-old Serb dominated the five-time major champion in the first set, winning 20 of the 24 points played in her service games, including the first 10.

"I never had it in my mind that I was going to lose the match," said Jankovic, who won a clay-court warmup tournament in Rome last month.

Igor Andreev of Russia, who upset third-seeded Andy Roddick in the first round, advanced to the third round by beating Nicolas Massu of Chile 6-3, 3-6, 6-3, 7-5.

Today, top-ranked Roger Federer was playing Potito Starace of Italy for a spot in the fourth round. Juan Carlos Ferrero, the 2003 champion, and No. 4 Nikolay Davydenko were also scheduled to play.

Other women's matches were also to include Serena Williams vs. Michaella Krajicek and Justine Henin vs. Mara Santangelo.

Serena Williams is the only American left playing singles in Paris.

"She's playing great tennis, and she plays well in a crunch," Venus Williams said. "And I think the longer she's in the tournament, the better she'll play."