A ball game for two or four (6)

I believe the answer is:

tennis

(Other definitions for tennis that I've seen before include "Court-based sport" , "Sent in strangely to play the game" , "Racquet-game" , "Racket-and-ball game" , "Sent in, oddly, to play a sport" .)

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.