Dr. David Altchek is an Attending Orthopedic Surgeon and Co-Chief Emeritus in the Sports Medicine & Shoulder Service at Hospital for Special Surgery. He is the Medical Director for the New York Mets and a medical consultant for the NBA. He previously served as the North American Medical Director for the Association of Tennis Professionals, which sponsors the men’s professional tennis tour, and was also the former Team Physician for the U.S. Davis Cup tennis team. Dr. Altchek is a Professor of Surgery in Clinical Orthopaedics at the Weill Cornell Medical College and the author of over 100 articles and book chapters on problems of the shoulder, elbow, and knee.