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An injury to the anterior talofibular ligament (ATFL) is the most common type of lateral ankle sprain. The ATFL connects the talus (ankle bone) to the fibula. Anterior talofibular ligament sprain symptoms include pain or soreness, swelling, difficulty walking, bruising, and stiffness in the joint.
MCL Knee Ligament Injury Explained. The Medial Collateral Ligament is the knee ligament located on the inner side of the knee joint. It links the thigh bone and the shin bone. A knee ligament injury is referred to as a sprain, and this knee injury can occur if the knee is twisted or subject to force from an opponent during sport. The Medial Collateral Ligament is the large ligament on the inside of the knee that links the thigh bone and the shin bone. 1  A first degree sprain is damage to only a few ligament fibres.  A second degree sprain is damage to a more extensive number of ligament fibres, but the ligament remains intact.