The player at the back of the court passes the ball to a setter and lies down. The setter then overhand passes the ball high before setting the ball up for the other player, who has now returned to his feet, to approach and spike the ball.
This drill improves agility and helps shorten approach time.
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.