4 to 8 players per group.
Player 1 rolls the ball out, while player two meets the ball and throws it to the passer who is now stood behind the stumps.
Player 2 now runs to player 1's original starting place and repeats the drill with the next player in the line.
With the teams divided into two groups, once a player has rolled and caught the ball behind the stumps, they join the back of the queue in the other group, who will be doing exactly the same.
How many times can players hit the stumps in ten minutes? Deduct a point for every misfield.
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.