"Reds third baseman Scott Rolen is no longer dealing with flu-like illness.

But he was not in the lineup Tuesday because of an issue that potentially is more serious.

Rolen pulled his right hamstring Friday night, trying to advance on a flyball.

"I felt a little burn in my right hamstring," he said. "I didn't recover too well. Then, as a bonus, I was throwing up in bushes when I got home with the stomach thing. If I had not been throwing up the last two days, I would not have been able to play anyway."

Rolen got a cortisone shot Sunday. He's not sure how long it will take to recover from it because he's never dealt with a pulled hamstring.

"I can't really pull from experience," he said.

The Reds are hoping to avoid putting Rolen on the disabled list.

"Right now, he's day-to-day," general manager Walt Jocketty said. "If it's a few days, I'd rather wait than have him out a long time."

Rolen dealt with a left hamstring issue for most of May and June. This is different."