Rotator cuff tears represent the vast majority of shoulder disorders treated by orthopaedic surgeons. From partial-thickness tears in overhead throwing athletes to full-thickness tears in the elderly, the prevalence of rotator cuff tears continues to increase over time. While some cases are asymptomatic, most patients with rotator cuff tears report shoulder pain, limited range of motion, and nighttime pain with difficulty sleeping on the affected shoulder. When nonsurgical treatment is insufficient in relieving the symptoms, arthroscopic rotator cuff repair becomes a viable option for many patients. Here we present the case of a rotator cuff repair of a full-thickness tear that extends into the infraspinatus on a cadaver shoulder in the beach chair position. The tear was repaired by placing an anchor, retrieving and passing three suture arms, and tying the suture. We outline the natural history, preoperative care, intraoperative technique, and postoperative considerations of rotator cuff repairs.