Ankle sprains are the most common of all athletic injuries.
Ankle sprains involving the lateral or outside part of the ankle re referred to as inversion sprains and are by far the most common type. Most inversion sprains occur during sports which involve jumping and side to side movement like basketball, volleyball and soccer. Ankle sprains involving the inside aspect of the ankle are called eversion sprains and are uncommon. When an inversion ankle sprain occurs, the result is damage to the anterior talo-fibular and calcaneofibular ligaments ranging from a mild stretch or strain to complete disruption. The deltoid ligament, which is located on the inside of the ankle, is much stronger and is rarely significantly damaged.