Boston Red Sox outfielder Carl Crawford will undergo Tommy John surgery to repair the torn ulnar collateral ligament in his left elbow.

"Carl Crawford has a chronic left elbow ulnar collateral ligament tear," the Red Sox said in a statement Monday. "While he has been following a conservative treatment protocol and playing with this injury, his symptoms are getting worse. After consultation with the Boston Red Sox medical staff and with Dr. James Andrews, the decision has been made to proceed with a left elbow ulnar collateral ligament reconstruction (Tommy John surgery). The surgery will be performed by Dr. Andrews on Thursday, Aug. 23. We expect Carl to make a full recovery."

The team met with Crawford and members of Boston's medical staff on Monday before coming to a final decision.

Crawford underwent wrist surgery in January and opened the season on the disabled list. He hit .282 with three homers and 19 RBI in 31 games this year.