It brings to light an interesting conundrum for Roos, as Daniel Currie – the preferred option to rotate with Jolly in the ruck – still suffering from a sore groin. "We need a back-up ruckman, clearly, ...

They may look like a mass pile-up of bodies, but they're a really important part of the game. Just as crucial as scrums or line-outs really. So what are they for? Teams use rucks and mauls to recycle ...