All-Ireland Hurling Final: 10 DOs and DON'Ts for the ref

On the first Sunday in September, 31 men will take to the pitch in Croke Park to entertain us in the All-Ireland senior hurling final. 

30 of them - the players - will do everything in their power to take home the Liam MacCarthy cup, sometimes straying outside the rules. The one other man, the referee, will do his best to the see that players observe the rules and ensure fair play prevails.

But why do players comfortably observe some rules and then regularly break others?