The coracohumeral ligament (CHL) travels from the lateral coracoid, posterior to the coracoacromial ligament, to the humerus where it crosses both tuberosities bridging the bicipital groove and inserting into the rotator cable. Thus, it is a stabilizer to the LHB tendon. Its primary function, however, is a restraint to inferior translation in 0° of abduction and external rotation. The fibers of the CHL are arranged in a fashion to unwind with external rotation.