system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is a tennis leg injury?


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.