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09/09/08 8:26 PM ET

Geary to give a boost to Astros' bullpen

Right-hander has been out since Aug. 26 with groin injury

HOUSTON -- Wandy Rodriguez will miss the Chicago series this weekend, but the Astros did get some good news on Tuesday about another pitcher who had been sidelined due to injury.

Astros manager Cecil Cooper confirmed reliever Geoff Geary was back in the bullpen mix for the first time since the right-hander injured his groin on Aug. 26.

"I'm ready to go," Geary said before the Astros' game against the Pirates at Minute Maid Park. "I've thrown a couple of 'pens and my leg's bounced back, now it's just a matter of getting on the hill and throwing in a game, hopefully today if not tomorrow. The sooner the better."

Geary threw on the side on Sunday, and after a day's rest felt no soreness.

"The only after effects is more my shoulder from throwing in Colorado with the mound situation. I don't know how those guys do it in Colorado, that's a feat in itself," Geary said. "But there's no problem with my leg, I'm running fine. I want to get in there and help this team win."

Geary, 2-3, with a career-best 2.48 ERA, has appeared in 48 games. Since coming off the disabled list on June 4, Geary hadn't gone more than six days without an appearance until this setback. But Geary doesn't think the layoff will be a problem.

"I think the biggest factor will be dealing more with your adrenaline level. Your adrenaline will kind of overtake your body," he said. "In my case, my bottom side may go first instead of my upper half. It's just a matter of getting my timing and staying relaxed."

Jim Molony is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.