All Blacks face pivotal Wallabies clash as Rugby Championship goes to wire

New Zealand can put one hand on the Rugby Championship trophy with victory against Australia at their Eden Park fortress on Saturday, but the champions will not be decided until hours later when South Africa play Argentina in Durban.

Despite a stuttering campaign that has seen defeats to South Africa and Argentina, New Zealand are level on points with the Springboks at the top of the table and it could all come down to points difference if both win on Saturday.

New Zealand last lost at Eden Park in 1994 and they haven't been beaten by the Wallabies there since 1986.

Flanker Akira Ioane called the Auckland stadium, which will be a 47 000 sell-out on Saturday, a "fortress for the All Blacks".

"We want to make sure we put in a good performance and don't leave anything up to chance," he said.

New Zealand went top of the Rugby Championship table after winning the Bledisloe Cup for the 20th straight season with a 39-37 win over Australia in Melbourne a week ago, secured only by a controversial try after the siren.

South Africa drew level when they beat Argentina two days later, leaving all four nations with a mathematical chance of winning the title.

"It's been a very different championship for all four teams," said New Zealand head coach Ian Foster on Thursday.

"It's exciting for the Rugby Championship that we've come to the last game and no one really knows (the outcome)."

Lock Sam Whitelock captains the All Blacks as they chase a third consecutive Test win after Sam Cane failed to recover from a head knock.

'Wake-up call'

It's a far cry from the start of the Rugby Championship when the All Blacks came off a 2-1 home series loss to Ireland to be thumped 26-10 by the Springboks in Mbombela.

The under-fire Foster clung onto his job when