Summarize the relationship between glenohumeral internal rotation deficitGIRD, SLAP tears, posterior impingement, scapula dyskinesis and shoulder micro-instability • Effectively diagnose SLAP tears, posterior impingement, scapula dyskinesis and shoulder mico-instability using screening and clinical tests. • Cite common pitching pathomechanics and describe their association with specific elbow injuries. • Paraphrase the peel back model for SLAP tears • Relate proper pitching biomechanics with injury prevention strategies for the adolescent overhead athlete