Berkman sat out Friday's game in Atlanta with discomfort in his left groin, which was the first game he had missed since he returned to action. Berkman said Monday he still felt some discomfort in the groin, but he was more than able to continue playing.
"It's just the result of I didn't run for five weeks because of my knee, and my legs are not in shape and I had to play nine out of 10 days going as hard as I can. And I think it was my body's way of saying, 'Hey, ease back a lit bit.' I'll monitor it and get treatment on it. I think that the off-day did a world of good."
Meanwhile, right-hander Sammy Gervacio threw a bullpen session Monday to pitching coach Brad Arnsberg and deemed himself available for action. Gervacio left Saturday's game in Atlanta due to a strained right shoulder.
"He says he feels great," Astros manager Brad Mills said. "He feels fine and he's ready to go. We're happy about that."