Don't know, but surely protocols should be universal given the rationale around player safety. The risks don't change depending on whether the game is domestic or international. So, this being RL, they probably are different, yes.

Welsby's defence in this game

Farnworth, though... When was the last time England had the best centre in world? The best since prime Senior.

We've had a few good ones (Senior, Connolly, Newlove, Schofield) since I've been watching the game, but I don't think any of them could truly claim to be the best in the world. Farnworth has that acknowledged from his peers in the NRL. You'd have to say that makes him probably the best British centre since the days of Neil Fox.