Terrible Triad of the Shoulder in a Competitive Athlete

The terrible triad injury to a shoulder consists of shoulder dislocation, rotator cuff tear, and brachial plexus palsy. We present a case of a high velocity shoulder dislocation in an athlete with concomitant massive rotator cuff tear and incomplete infraclavicular brachial plexus injury. In this injury, most neurologic symptoms resolve, prompt surgical intervention is warranted, and comprehensive physical therapy is integral to recovery.