Guzman pitched two shutout innings for Class A Peoria on Friday. He struck out two hitters and threw 21 pitches. It was the first time he had seen game action since 2009.
Cubs assistant GM Randy Bush said there was no time table for Guzman’s return.
“I would not say that we are shocked,” Bush said. “I would just say we went into it with no expectations. So we felt if this guy wants to rehabilitate we want to help him. He is one of our favorites. We knew his work ethic going into it. So again I can’t say we are shocked simply because we didn’t have any timetable for him.”
Guzman had come on and pitched well for the Cubs in 2009 before injuring his shoulder. He missed the entire 2010 season after having arthroscopic surgery on his right shoulder. The procedure was performed by famed surgeon Dr. James Andrews. It was the second time Andrews had performed shoulder surgery on Guzman.
Guzman originally signed as a free agent with the Cubs in 1999. He has a 3-10 record with a 4.82 ERA and one save in 88 major league games. The 29-year-old was once considered among the top prospects in the organization.