Athletes typically have injuries of the ligaments and can happen at any of the joints. The ankle and knee are the most common areas for athletes to be injured. This is not sport specific.
Whenever joints are stressed beyond normal range ligaments can be strained. Landing awkwardly or twisting can cause a ligament injury.
It is typical when a particular joint is stretched beyond its limits the ligaments can tear away from the bone.
Injury to the knee ligaments and the ankle ligaments are the most common ligaments that are torn. This happens because those joints are weight bearing, under a lot of stress while participating in sports that change direction or full contact sports.