Dallas Cowboys rookie guard Ronald Leary has no fear of the joint condition in his left knee that caused him to go undrafted and could force him to retire prematurely…The Memphis alumnus suffers from osteochondritis dissecans, which is often abbreviated as OCD. According to MayoClinic.com, it occurs when a piece of cartilage, along with a thin layer of the bone beneath it, comes loose from the end of the bone because of reduced blood flow.

My San Antonio by Tom Orsborn

Tags: Celebrity Patients, Dallas Cowboys, Mayoclinic.com, My San Antonio, osteochondritis dissecans, Ronald Leary, Sports Medicine