Steve Hansen has said that New Zealand must prepare thoroughly ahead of their final Test of the Autumn series against England next weekend.
The world's top-ranked side looked comfortable against Six Nations champions Wales yesterday, while England narrowly lost to South Africa.
The All Blacks head coach told Sky Sports News: "We put [Wales] under a lot of pressure but then of course got Cory [Jane] in the sin-bin and we lost our control and shape for some time, which allowed them to come running back at us.
"But we can't afford to get ahead of ourselves and if we don't prepare in genuine fashion England will give us a thumping next week. However, we'll enjoy this success and start again on Monday."
The two sides meet at Twickenham next Saturday.
