 When a winner is hit, the player within whose court the ball lands (half the court being divided vertically as well), this player is eliminated from the game (it is also popular that a super-shot, or a winner hit through the middle of the court without a definite decision to which player is eliminated, results in both players on that side being eliminated from the game).As more eliminations occur the number of substitutes decrease.When only 4 players remain in the game (no substitutes) a mistake is penalized with the player running back and touching the wall behind the baseline while a ball is put into play in the opposite side allowing the other duo to hit a winner.