The All Blacks go into their final Test of the year against South Africa in Cape Town needing to win to keep their hopes of retaining the Tri-Nations alive.
The New Zealanders are a point ahead in the competition but only have one more game left after Sunday's Test at Newlands - against Australia in Brisbane - while the Springboks and Wallabies clash twice in South Africa as well.
The assistant All Black coach Wayne Smith says it's definitely crunch time for their season on Sunday and they know they must win.
Smith says he knows they must win and that coach Graham Henry has already called winning in South Africa the biggest challenge in rugby today.
Smith says it's a massive Test match for the All Blacks but they're coming off a good performance against Australia in Auckland and they're looking to repeat that form against the Boks.