Sportal.co.nz 30.Sep.2013Getty Images
South Africa go into the game five points behind New Zealand but with the knowledge they enjoy a superior points differential which could see them claim the title if they win with four tries.
"They are going to have to play some rugby. That will suit us as much as it will suit them," Hansen told SKY Television after the game.
New Zealand now needed to recover well and back that up in South Africa and prepare for a big Test match.
"Our guys are looking forward to it, they're already started talking about it so I don't think there will be any problem getting them up," he said.
The Pumas had provided the tough contest the All Blacks expected.
"It was nothing more than we expected. They are a side that is getting better all the time. They're very, very good up front and they tried to play a bit of rugby today and played it quite well so we had to work for it, and the bonus point right at the end was exactly that, a bonus for us," he said.
There had been some scrummaging problems and Hansen felt this was due to a groin problem tighthead Owen Franks suffered early in the game and the issues had been rectified when Charlie Faumuina came on to replace Franks.
"We were a lot clearer with what we wanted to do in the second half, we kicked a lot better, got a lot more urgent...and as a result of that we started going forward," he said.
Hansen said he had been eager to get the bonus point try in what proved the last act of the game.
Captain Kieran Read said: "It was a very tough game, they came out firing and kept the crowd in it throughout that first half. We probably just weren't there but full credit to the way the Argentinians came at us.
"It's going to be a big match next week, we've got to recover well. It's a long flight tomorrow but we've got to take the positives out of tonight. I thought that early part of the second half was great from our point of view so we'll build on that for next week."
The bonus point had been crucial and they had worked hard to get it, he said.
The Pumas captain Juan Martin Fernandez Lobbe said the All Blacks had put a lot of pressure on his team and they had lost some discipline and that was why they were the best team in the world, they just kept applying pressure.
Try scoring hero Ben Smith said it had been a tough game and Argentina had taken it to the All Blacks in the first half.
Smith scored the vital bonus point try which the side knew they had to score, and it had been at the backs of their minds heading into the last stages of the game.
But Smith said he thought getting the win was the most crucial thing.
Hooker Keven Mealamu enjoyed the contest in the tight but said the outcome was the All Blacks would be heading into a storm in South Africa.
"That's all we play for as All Blacks and as rugby players. Those are the opportunities that we look forward to," he said.
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