A 47-year-old female amateur marathon runner with 9 years of running experience, a running pace of 6:40 min/s/km, a weekly running distance of 50 km, and a rearfoot strike pattern. Axial fs-T2WI showing continuous walking and an increased signal in the anterior talofibular ligament (arrow), and an edema-like signal in the surrounding soft tissue (arrowhead) (grade 1)