Medial collateral ligament (MCL) injuries are not super common in isolation; however, they do still occur mostly in sports, and can be one of the structures involved in more serious knee injuries. In most cases, the prognosis is good for these injuries with proper treatment. In this article, we will cover MCL injury rehabilitation considerations, by providing you with a framework regarding the anatomy of this structure, common mechanisms of injury, the healing process, and the best way to optimize recovery with exercises!