For all the skill and athleticism on show in tomorrow morning's World Cup final, both sides think it will be the intangibles that will make the difference.
Players call them the one per centers, the little things that can decide a game, and aren't always the most obvious aspects or the ones crowds come to see.
"In big games like this, it's just effort," Australia coach Tim Sheens said. "The skill factors are there but it's offset generally by the effort, the one per cent things that some player will do - make a tackle, dive on a loose ball or do something that makes a difference. The little things will win the game."
Kangaroos halfback Cooper Cronk agrees.
"Rugby league has been played for over 100 years but the fundamentals haven't changed. You have to tackle harder than they run and run harder than they tackle."