A person is playing a tennis game by himself. 
A person standing sideways, holding a tennis racket and a tennis ball on a tennis court area with a backboard by a fence, with benches and two people playing with a basketball on the other side, and trees and building in background.
An older person serving a ball against a wall in a park.
A person that is playing tennis and holding a racquet in their hand.
A man standing on a tennis court while holding a racquet.