Rugby Drill Demonstration
In the diagram, we get an idea of the 1-3-3-1 shape on the pitch. I’ve removed all backline players for the purposes of clarity here.
One of the back row forwards holds width in the left-hand 15-meter channel , the three front row forwards form a group left of the central part of the pitch [3, 2 and 1], the two locks and a back row player do the same to the right [4,5 and 8], and the final back row forward holds width in the right-hand 15-meter channel .
That gives us our 1-3-3-1 shape.