INDIAN WELLS, Calif. -- Fourth-seeded Lindsay Davenport advanced to the semifinals, when No. 5 Amelie Mauresmo of France withdrew from their match because of a throat infection.

Davenport next plays second-seeded Jennifer Capriati, who defeated 18-year-old Vera Zvonareva of Russia 7-5, 6-2 in their quarterfinal match.

Davenport, coming off a 6-4, 6-3 victory over Elena Bovina in the fourth round, wasn't particularly happy to get the day off.

"I was looking forward to playing,'' said Davenport, working her way back from knee surgery. "I feel like right now, in order for me to get better and to improve on my confidence and my game, I need to be out there playing matches, playing the top players. I was obviously disappointed when I heard,''

When she saw Mauresmo, it was obvious she wasn't able to play.

"She looked terrible, sounded terrible,'' Davenport said. "There's no question she was really sick. It was just one of those things.''