Question

Yo juego tenis en la______ de tenis. (1 point)

Answer 1

Cancha is the answer to your question. 

Answer 2

You juego tenis en la cancha de tenis.
The word cancha refers to a sports field, or in this case, a tennis court. The entire sentence means - I play tennis in a tennis court. The word cancha is commonly used with tennis - cancha de tennis is a tennis court - although it can be used with other sports as well, for example, futbol (football).