I was sitting, cognising and thought of this scenario.
Premier League footballer at Man City (Silva I think) catches a glancing blow to the face (accidentally) by a passing opposition player (West Ham)... crashes to the floor in agony, has to have oxygen, is strapped to a stretcher and carried off. Result... just a bruise, nothing broken.
Superleague player (Travis Burns), is flattened by a pre-meditated front on blow to the face, gets up, shakes his head and soldiers on to the end. Result...fracture(s) to the cheekbone, out for a couple of weeks and now thankfully back.
Vive le difference and another example of how tough rugby league players are when compared to any other sport.