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Guzman has shoulder surgery

SURPRISE, Ariz. -- Chicago Cubs reliever Angel Guzman has had arthroscopic surgery to repair a career-threatening injury to his right shoulder.

The procedure performed Tuesday by noted orthopedist Dr. James Andrews was not as extensive as the Cubs anticipated, meaning he has a better chance to pitch again than first expected.

Guzman had several screws inserted to repair a torn ligament, another in a series of injuries for the right-hander since he debuted in 2006. The Cubs were hoping he'd be their right-handed setup man after he pitched in a career high 55 games last season and posted a 2.95 ERA.