Derek McGrath: I've only seen Kiely and Kinnerk disagree once. Waterford's mission is to recreate that frustration

This group of Waterford players will love outside talk of tiredness and that playing four weeks in a row is unfair. Expect them to explode in Croke Park

Players from both sides fight for the ball during last year's All-Ireland final. Picture: Daire Brennan/Sportsfile

Calvin Coolidge once wrote that “nothing in this world can take the place of persistence”, concluding that determination and persistence are “omnipotent”.

In many fields of Ireland, the phrases “keep at it, keep going” can be heard as coaches have learned to be more forthcoming with positive encouragement, honing in on the benefits of persevering, reacting well to feedback and improving.