Dr. Tom Walters, DPT, OCS on Instagram: "💥𝐌𝐂𝐋 𝐈𝐧𝐣𝐮𝐫𝐲💥 —— 📚The medial collateral ligament (MCL) is one of the key stabilizers of the knee, helping resist valgus forces (inward stress) placed on the joint. Injuries to the MCL are common in sports and activities where the knee is struck from the outside or forced inward, such as football, soccer, or skiing. Symptoms often include pain on the inner knee, swelling, and difficulty with side-to-side movements. 🔎The valgus stress test (show