At the start of your turn, you may place any of your empty :cup: upside down on top of :cup: or :opposition-cup:. If an empty cup is knocked off by a :ball:, it is removed from the game.
At the start of your turn, you may place any empty :cup: upside down on top of your cups or the opposition's. If an empty cup is knocked off by a :ball:, it’s removed from the game.