The Wallabies wrapped up their preparations for Saturday's Rugby World Cup final with their captain's run on Friday morning, complete with the now obligatory 'Thunderstruck' blasting out from a portable PA system.

For coach Michael Cheika the work is all but done, save for a final pre-match blast in the final moments before his side run out to face the All Blacks in the battle for global rugby supremacy.

Cheika has transformed the Wallabies from also-rans to title contenders within a year with but he needs the cards to fall in his favour one more time if he's to join Bob Dwyer and Rod Macqueen as World Cup-winning coaches of Australia.

Michael Cheika looks on ahead of the Captain's Run© Dan Mullan/Getty Images

Do the Wallabies have enough left in the tank to challenge the All Blacks to the final whistle? "I've got a lot of belief in my team, we've worked really hard, trained really hard," Cheika said.

"We only had a short space of time really between the Rugby Championship and this tournament to get good building blocks in around fitness and also resilience for the contact. We know it's going to be extremely physical and we want to be able to last that. So I believe we've prepared accordingly.

"Once the 80 minutes starts, not only will your preparations take a hold but also a lot of the reasons that are driving you mentally; that takes over the physical part and you only feel the physical parts later."

The No.1 ranked All Blacks and No.2 ranked Wallabies have been the standout teams throughout the tournament, ensuring the finalists are both unbeaten for the first time since the 2003 edition of rugby's global showpiece.

They split back-to-back Bledisloe Cup encounters earlier this year, with the Wallabies taking the honours in Sydney before the All Blacks crushed their local rivals seven days later in Auckland.

Cheika isn't sure if either match is particularly significant ahead of their first ever encounter at Twickenham, the coach preferring to focus on the final few hours he has before the match is the sole responsibility of the 23 men pulling on a gold jersey on Saturday afternoon.

"They always say, 'You look backwards you're only going to get a sore neck'," he said.

"For us, it's there, there's a few little tactical things maybe. But it really means nothing, it's what happens in the next day or so that's in front of us, the last parts of our preparation and then the 80 minutes that's ahead of us and being ready to play those out to the maximum of your potential and then see where the cards fall."

Whether or not Cheika comes up with the ace of diamonds, few can deny he's put in an effort worthy of a Webb Ellis Cup-winning coach.