Trainer plays 10 balls from 2 or 4 towards the player. She has to pass the ball to the receiver on position 3. The rest collects balls. After 10 balls change.
When everyone has been out, trainer throws more difficult balls.
When everybody is out, trainer throws more difficult balls on 5/6/1, so player has to move.
When everyone is dead, trainer smashes 10 balls on position.