Dr. Neal ElAttrache performed an arthroscopic debridement of Garland's labrum and bursa and a clean-up and reinforcement of the rotator cuff. His recovery is expected to take six months.
Garland, 31, was disabled June 2. He tried to rehab the injury, but pain persisted. Garland, 1-5 in nine starts, received $5 million this year and had an $8 million option for 2012 that would have vested if he pitched 190 innings and was not on the disabled list during September with an injury to his arm. That clause was an indication that both parties were aware of damage that might prevent Garland from finishing the season healthy.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.