Players stand in a circle, with two player in the middle and the remainder forming the ring.
It's the aim of the outside players to pair up and shut down the middle players' escape routes - using shoulder strength to box out the middle players.
Defending in a personal duel:
Be strong but don't push!
Keep arms slightly bent and in front of you, prevent the attacker from coming between your arms. Stay between the goal and attacker.
Create a resolution to develop your coaching confidence by seizing the opportunity to discover new drills, turn ideas into action and seek advice from the coaching community.
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."