"I don't think any team is unbeatable on their day," Kerevi said after his two- try effort against Argentina.
"They're playing exceptional but I don't think any team is unbeatable.
"I think we just have to focus on ourselves and our structures in defence and attack, just focus on that and (the win) will come."
Highlighting how tough the task will be is New Zealand's astonishing record at Eden Park, where they've not lost in 36 starts since a shock defeat to France in 1994.
The following Test, also in 1994, resulted in an 18-all draw with South Africa and the next 35 all wins in favour of the All Blacks.
Cheika was reluctant to speak in depth about the All Blacks, preferring to let his players bask in a rare Test victory in 2016.
But he knows special performances will be needed to topple the world champions - like Kerevi's barnstorming two-try effort on Saturday night.
"You could see the intent he had always. He did not want to be stopped," Cheika said.
"He'd drive his legs, keep going and get up again. "It's a strength of his. He wants to use and that's I want him to do as well."
- AAP