Set up a 5x5 metre grid with three players and two balls.
The defending player starts in the middle of the grid, facing the two attackers. When everyone is ready the two attackers both set off and try to run out the opposite side of the grid without being tackled by the defender.
The attackers should be successful here at least 50% of the time (if not more).
They should try to work together to make the defending decision difficult for the defender and use changes of pace and direction to get past the defender.
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.