<prompt> Most common injured muscle in rotator cuff is:Supra-spinatus muscleInfras-spinatus muscleTeres minorSubscapularis  <response>: Rotator cuff muscles- S -Supraspinatus on greater tubercle I -Infraspinatus on greater tubercle t -Teres minor on greater tubercle S -Subscapularis on lesser tubercle These helps in strengthening of capsule posteriosuperiorly. Anteroinferior dislocation are more common Supraspinatus tendon is injured most commonly 