Understanding an Ankle Sprain
Thomas San Giovanni, Orthopedic Surgeon, at Miami Orthopedics and Sports Medicine Institute, explains there is a difference between a tendon and a ligament: "Tendons and ligaments are different structures. Ligament connects bone to bone and these are what give the joint typically stability. And a tendon is muscle to bone and that typically will move our joints".
He says feeling a pop can be either a ligament rupture or even a tendon rupture, it will depend upon how you rolled your ankle, and the doctor will see which structures anatomically are injured.