Coach feeds a long ball across the court.
Players have to run across the court to play the ball deep down the line and then across to the net to play a short drop shot down the line.
Each player hits the 2 shots and then go to the back of the queue.
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.