Here are two warning signs of an infraspinatus tear:1. Pain: Pain is a common symptom of a rotator cuff tear, and it may be felt in the shoulder or upper arm. The pain may be sudden and intense, or it may develop gradually over time. The pain may also be worse at night, especially when lying on the affected shoulder.2. Weakness: Weakness or a feeling of weakness in the shoulder or arm is another warning sign of a rotator cuff tear. You may find it difficult to lift or move your arm, especially when trying to reach overhead or perform activities that involve the shoulder. Weakness can be a sign of a partial or complete tear in the rotator cuff, and it may be accompanied by a popping or clicking sensation in the shoulder joint.Other symptoms of a rotator cuff tear may include a limited range of motion, stiffness, and swelling in the shoulder. If you are experiencing any of these symptoms, it is recommended that you seek medical attention to determine the cause of your discomfort and receive appropriate treatment.