England only hit five scrums over the course of the session – they will only do 10 all week – and, as Harrison explains later, scrum machines have been consigned to history.

Former South Africa scrum coach Matt Proudfoot recalls the 2018 Rugby Championship, and in particular a game against Argentina, as to where they found their best combinations at the scrum.

The scrum machine is like a blocking sled. The team weighs it down as much as possible and then has the guys go to work. “It’s a show of power and possession of the ball,” Nik Hildebrand said.

: Carters delivery truck driver Royden Ashwell, High School Old Boys premier coach Wayne Ensor and Lytton High School 1st XV coach Reweti Montgomery with the team and their scrum machine.

During those videos, Human, who doesn’t believe in scrum machines because “it doesn’t push back” the Bok climb into each other with massive impacts during scrum training.