That self-assurance will help them overcome what has been a short and disrupted preparation. The Kiwis might have only managed one or two full team trainings but coach Stephen Kearney has done well in recent years to prepare his side and get them focused on their performance.
Their mental preparation will be crucial as they face up to an experienced Australian team with a strong core group of players that have played together for many years and know how to win.
This Kangaroos outfit has been described as Dad's Army by some sections of the media, with several players supposedly nearing the end of their careers, but they remain as dangerous as ever and certainly cannot be taken lightly.
They have brilliant players in key positions and will be well prepared and hungry to win after losing to the Kiwis twice in the space of three weeks last October.
Although they remain the No1 side in the world, the Kangaroos remain vulnerable because of the growth and self-belief in the Kiwis' ranks.
And while New Zealand have every right to back themselves after last year's triumph, this is another test match and they need to start over and work hard to claim another win at Suncorp Stadium.
The Kangaroos realise if they can't dominate or match the Kiwis up mfront they will be in for a tough night.
It's time to see the Kiwis front up and produce their best and put some old excuses to bed.