<|im_start|>user
What is a tennis leg injury?<|im_end|>
<|im_start|>assistant
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.<|im_end|>
