The 4 players inside the blue square must protect the square and stop the ball carriers entering.
To begin with the players inside the square are only allowed to shadow and block the outside players from entering.
One point is scored by each player who successfully carries out their objective.
If the defender wins the ball then the players switch roles.
Adopt a surf position when defending, mirror the attacker and try to channel them away.
Players inside the square are allowed to tackle the other players.
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."