the point is that if you don't like Tennis you play badminton
No, but he does play tennis in Woody Allen's Match Point.
It means if you win that point you win the match.
"Game, set, and match" is the term for the final point scored in a tennis match. It's effectively a shorthand for saying "that point ends the game, that game ends the set, and that set ends the match."
After every point.
after every point
Two people can play a singles match or four people can play a doubles match.