The conversation between human and AI assistant.
[|Human|] What is a tennis leg injury?
[|AI|] A tennis leg injury is an incomplete rupture of the inside of the calf muscle, where multiple muscles are attached. It is caused mostly because of tennis-like sports due to a sudden contraction of the calf muscles. Sports like tennis and squash are most likely causing this kind of trouble due to the short and intense moves it requires to practice.
[|Human|] 
What is a tennis leg injury?