Posterior shoulder tightness (PST) and glenohumeral internal rotation deficit (GIRD) are common impairments found in overhead athletes, and may contribute to shoulder impingement symptoms. This systematic review found that the cross-body stretch can improve PST and GIRD in asymptomatic young subjects immediately or in the short term. There is moderate evidence to suggest that the sleeper stretch is less effective when compared to passive cross-body stretch in the short term, and no more effective than no intervention.