Both sides line up facing one another, with the ball starting on opposite sides.
The player who starts with the ball throws to the player opposite them who then returns the ball. They then throw the second player on the opposite side who also returns the ball. Finally they throw the ball across to the third player on the opposite side who then returns the ball.
Look out for balls crashing into each other in the latter stages of this drill. Players should concentrate to avoid hitting the other ball.
To create an element of competition see which team can be the first to complete this pattern 5 times without making a mistake.
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.