Players take it in turn to run and squeeze through the small openings between the blue players, being strong to drive through the blocking man.
Blue players must keep their arms down when blocking the running man and only use their core strength to prevent the man running through (no shoulder barges).
Look for strong, driving play. The running players should have their arms slightly bent to brace for impact
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."