The coach is standing in the center of the court with at least 3 balls ready.
2 players stands behind him ready.
A ball is thrown and the 2 players tries to get the ball.
The player, who gets the ball runs against the goal and shoots.
The other players must try to block the shot.
Immediately after the shot both players returns and just before they pass the coach he throws another ball in the running direction.
Again the player who gets the ball must shoot and the other must prevent it.
Then back again - new ball and the last shot.

If one of the players is too much in front of the other, the coach can throw the ball in a direction which give the front runner some disadvantage and makes it possible for the second runner to be able to make some pressure on the first.