The All Blacks will now be tough to beat to the Rugby Championship title, with the world champions eight points clear at the top of the table.
With both first choice props Joe Moody and Owen Franks on the injured list, the All Blacks selectors surprised a few when they gave Kane Hames the number one jersey and retained 64-test veteran Wyatt Crockett in his impact role off the bench.
For the many Springboks fans, the Test was likely reminiscent of last year's 57-15 thrashing in Durban.
South Africa players look dejected following their Rugby Championship match against New Zealand at Albany Stadium in Auckland
"We started a bit jittery".
South Africa coach Allister Coetzee said: "I'm very disappointed and the players are hurting".
Four minutes later, it was Barrett's turn to impress.
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New Zealand's ability to attack against unstructured defences was simply too potent - allowing Nehe Milner-Skudder to score twice and Rieko Ioane, Scott Barrett, Retallick, Ofa Tu'ungafasi, Anton Lienert-Brown and Codie Taylor to also cross the line.
South Africa continued to enjoy plenty of the ball in the second half, but proved toothless going forward and Milner-Skudder punished them with his second after the restart.
For Hansen, the scoreline was partly misleading.
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THE All Blacks have emphatically answered questions about their world champion credentials, humiliating the supposedly resurgent Springboks in a record 57-0 rout at North Harbour on Saturday night.
If you look at the first three tries they scored; a quick tap caught us napping, an intercept followed from there, and then a cross-kick.
Though the try will be credited to Milner-Skudder, it was Beauden Barrett who ensured it will take a place on the highlight reel of tries from 2017.
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