Each player must stand infront of a mat with a medicine ball held above their head.
He/she then squats, holding the ball above their head, then stands and throws the ball into the mattress as hard as they can.
When squating the back muscles must be kept straight.
When throwing this drill will work the player's arm flexors.
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."