A 39-year-old man presented with right heel and lower leg pain that began the night before during a basketball game. Another player had jumped and inadvertently landed on the back of the patient’s lower leg. No abrasions or ecchymoses are present in the area of the injury. The right lower extremity has diffuse edema, and a palpable groove proximal to the heel is evident. The area is tender. A Thompson test performed bilaterally finds some flexion of the right foot but less flexion than the left foot.