Todd Martin has suffered through almost every ache, pain and injury possible in tennis, and now it appears he has another ailment to contend with. Martin said he has been "terribly tired" lately and is seeking medical attention to determine the cause.

Martin, the No. 8 seed, cited exhaustion as one of the reasons behind his 6-4, 2-6, 3-6, 6-3, 7-5 loss to Fernando Vincente in the second round of the Australian Open Wednesday afternoon. Nine seeded men have been ousted in the first four days of this tournament, including No. 9 seed Richard Krajicek, but Martin's departure may indicate a more serious problem.

"I've had an interesting trip so far as my health is concerned, and I haven't had a lot of explanation and don't know what to do," Martin, 29, said. "I don't know what to make of it."

Some of Martin's fatigue may be related to all the time he has spent on the court lately--he has been involved in several marathon five-set matches over the last six months, including in the first round of this tournament. On Wednesday, Martin led as late as the fifth set, when he had a 5-2 advantage on Vincente.

Tired Goldstein Loses

Rockville native Paul Goldstein's short run at Melbourne Park ended Wednesday when he and doubles partner Mitch Springlemeyer lost to the No. 14 seeds, Martin Damm and Max Mirnyi, 7-6 (7-5), 6-4. Goldstein was eliminated from the singles draw Tuesday night, battling Australian favorite Lleyton Hewitt through four arduous sets before falling, 6-2, 6-7 (7-5), 7-6 (7-5), 6-4. That match kept Goldstein at the tennis complex until almost 3 a.m. Wednesday; he returned to play the doubles less than 10 hours later.

"It's tough when you get off the court at 2 a.m.--your body is tired, but you have so much adrenaline that you can't sleep," said Goldstein, who stopped off at an all-night falafel stand before heading back to his hotel. "I was up until 5 a.m." . . .

Russian Marat Safin has been fined $2,000 for not trying hard enough during his first-round loss to South African qualifier Grant Stafford. Safin was warned four times by the chair umpire for his apparent lack of effort before being penalized under a Grand Slam regulation demanding each player's best effort. Immediately after the umpire's fourth warning, Safin caught a serve from Stafford in his hand instead of attempting a return.

Jet-Lagged Players Cope

Many of the U.S. players said they haven't had major problems with jet lag, although Melbourne is 19 hours ahead of Pacific time in the United States and 16 hours ahead of Eastern time.

"I always have trouble going over to Europe with the time change, but coming to Australia or Asia is not really a problem," said Pete Sampras, who lives in Los Angeles. "Going back is another issue. One year it took me about a week to recover, from my appetite to my sleeping."