Podcast 2 – Shoulder Injuries

My son 16 next month has as soft tissue injury just below the shoulder. It is hurting him when he folds his arm across the chest. The doctor said it was 1 of the smaller muscles & gave him stretching & strengthening exercises to do. Can you tell how to rehab it for him as I have done a part-time physical/massage therapist course a few years ago. The doctor told him 4 weeks out playing Gaa but he has a schools Leinster semi final coming up in 2/3 weeks & he really wants to play as all kids would.