The second Bledisloe test should provide a definitive answer as to whether this All Blacks side has what it takes to win the World Cup.

The essence of a World Cup campaign is the ability to respond to pressure and the All Blacks are quite clearly under considerable amounts of that this week.

It's not just that the Bledisloe Cup is under threat following the Wallabies' record win. That's at the heart of it obviously, but the plot is much thicker than that.

The last 10 months have been the most difficult and least convincing of the past decade.