Many baseball players suffer from shoulder injuries related to the rotator cuff muscles. These injuries may be classified as muscular strain, tendonitis or tenosynovitis, and impingement syndrome. Treatment varies from simple rest to surgery, so it is important to be seen by a physician as soon as possible. In order to prevent these injuries, the following measures should be taken: (1) implement an extensive flexibility program; (2) implement a proper conditioning program including strength resisting exercise; (3) utilize proper body mechanics in the throwing motion; (4) rotate pitchers based on number of innings pitched; and (5) use an ice massage immediately after a game or heavy practice. If pain is reoccurring or continues for 72 hours, seek the advice of a physician. (DC)