All Blacks lock Luke Romano explained what he believes makes the world champions such a formidable side when playing at home.
"Obviously there is that history [of success] there at home but whether it's us or whether it's [that] the other teams that come to New Zealand are already beaten before they come there; that the other teams think like that, think that they're not going to win," Romano told Stuff.
"So even before they've got on their plane, they've beaten themselves. And that's going back to your question about the mindset; rugby, a lot of it is about the top two inches.
"A lot of the athletes around the world are pretty similar, they've all got the same attributes and can all do the same things, but it just comes down to that mental attitude and that mindset.
"You just take the Lions. The Lions come over real confident and they beat us and had a draw with us."
The Pumas will be keen to go from being competitive for 60 minutes, to actually playing as well for the full 80 and beat the All Blacks when the sides meet in their Round Five Rugby Championship clash in Buenos Aires on Saturday.