Coach (C) stands 15m away from players who have paired up with someone of a similar size
Coach (C) kicks or handballs high in the air to the first pair (A) and (B)
(A) and (B) jostle for position, with the player who makes front position attempting to mark, the other attempting to spoil
If the ball is spoiled, you may elect to end the contest, or have players compete for the crumb
Once ball is returned to (C), next pair begin
After a while of even contests, call the players in and explain that players now take turns to lead and spoil. Lengthen the distance to 25m. The leading player must push-off their opponent and coach (C) kicks to their lead, while the other player attempts to spoil.