This document discusses shoulder injuries in rugby players. It provides statistics showing that rugby has a high risk of shoulder injuries, which are often recurrent. Common shoulder injuries in rugby players include labral injuries, AC joint sprains, rotator cuff tears, and glenohumeral arthritis. Video analysis has shown that tackles are a major cause of shoulder injuries in rugby. The document outlines the forces involved in rugby tackles and compares them to car crash forces. It then discusses approaches to diagnosing and treating shoulder injuries in rugby players, including rehabilitation protocols and return to play timeframes following arthroscopic stabilization surgery.