Schedule an appointment for ATFL Sprain/Tear (Lateral Ankle Sprain) Treatment in Layton, UT. Our physical therapists professionally assist you with ATFL Treatment. Matt and Jordan here with www.AspenRidgePhysicalTherapy.com. An ATFL sprain refers to a type of ankle sprain that occurs when the anterior talofibular ligament (ATFL) is stretched or torn. The ATFL is a band of tissue that connects...