Prior Undergoes Shoulder Surgery; 2007 Season Over

Chicago Cubs pitcher Mark Prior underwent successful right shoulder arthroscopy on Tuesday, ending his 2007 season.
The surgery was performed in Birmingham, Alabama by Dr. James Andrews, who performed a debridement of Prior's right rotator cuff as well as repair of labral and capsular injuries in his shoulder.
Prior began a comprehensive rehabilitation program in Birmingham on Wednesday overseen by Dr. Andrews and the Cubs medical staff and will continue his rehab program into the offseason.
After spring training this year, Prior didn't go with the Cubs to start the season. Instead, he remained behind in Mesa, Arizona for extended spring training. He only had one outing, which ended early because of discomfort in his shoulder.
Prior was 0-2 in four spring training games, three of which were starts, with a 6.97 ERA this year.
Last season, Prior was limited to just nine games because of the shoulder problem, going 1-6 with a 7.21 ERA. Prior to his injuries, he won 18 games in 2003, helping the Cubs reach the NLCS for the first time since 1989.