Lie on your back.
One knee slightly bent, the other one straight on the floor.
Hand in the neck.
Go with left elbow into the direction of (moving) right leg.
Same on the other side.
15x left
15x right
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.