Todd Martin was dripping with sweat again today, but this time his face had color and his U.S. Open title hopes had new life. Less than 24 hours after defeating Britain's Greg Rusedski in a thrilling come-from-behind 5-7, 0-6, 7-6 (7-3), 6-4, 6-4 thriller, Martin was back on the court, practicing for his Thursday quarterfinal match against the Czech Republic's Slava Dosedel.

"I feel better than I thought I would," said Martin, who didn't leave the National Tennis Center until shortly after 2 a.m. "I'm fatigued, obviously. If I can win [Thursday], I'll get another day off, and then we'll see what happens over the weekend. The docs are pretty optimistic about the opportunity of my health improving over the next few days."

Martin had been fighting a stomach virus before even stepping onto the court against Rusedski, and things didn't get much better for the No. 7 seed once the match started. Rusedski raced through the first two sets and was up a break and two break points in the third set. If he had converted on either of the break points, the match would likely have ended quickly, but when he didn't, his game began to unravel. Martin won the game and the set before eventually gutting out the match.

"I'm extremely disappointed; I'm obviously upset because I should have been in the quarterfinals," Rusedski said. "You've got to think, you get so little chances at Slams. To come out and lose like this is just terrible."

Krajicek Comes Up Short

Richard Krajicek tried his best to duplicate Martin's comeback win in today's play, battling through his quarterfinal match with No. 3 seed Yevgeny Kafelnikov. But despite an impressive rally from the Dutchman -- which included a record 48 aces -- Kafelnikov was able to prevail, 7-6 (7-0), 7-6 (7-4), 3-6, 1-6, 7-6 (7-5).

"I won the first two sets and started to feel a little bit tired, gave Richard a little freedom and he started to play unbelievable," Kafelnikov said. "His serves were 130 miles per hour, 135 miles per hour. I would never thought he was going to do that after 2 1/2 hours of play. I was just trying to hang on until the breaker in the fifth."

Goran Ivanisevic held the previous record of 46 aces, set at Wimbledon in a five-set loss to Magnus Norman in 1997.