All Blacks coach Scott Robertson admitted his delight at winning the Bledisloe Cup for the first time in his career was tempered by a realisation his team remain a work in progress after their narrow win over Australia in Sydney on Saturday.

Australia seek to snap a 21-year hoodoo against New Zealand in the first Test in Sydney. Join Jonathan Howcroft for updates

The All Blacks led 21-0 after 15 minutes but faltered badly in the second half, only just holding on with 13 men at one point to beat Australia 31-28 in the first Bledisloe Cup test.

On a sun-drenched Sydney afternoon, the All Blacks fired and almost fatally fizzed to deliver another erratic performance that anxiously locked away the Bledisloe Cup. Securing the coveted Bledisloe for a 22nd straight year ensures the All Blacks trophy cabinet won’t be bare after losing the Freedom Cup and Rugby Championship following successive losses in South Africa.

The All Blacks retain the Bledisloe Cup despite a nervous last 20 minutes in their 28-31 win over the Wallabies in Sydney on Saturday.

The Bledisloe Cup will remain in New Zealand for a 23rd straight year after the All Blacks beat the Wallabies 31-28 in a Rugby Championship thriller in Sydney.

Australia have lost their eighth-straight Test to New Zealand and bungled another chance to snatch their first Bledisloe Cup series victory since 2002, going down 31-28 before a crowd of 68,061 at Accor Stadium in Sydney.

The Wallabies took on the All Blacks in the opening match of the Bledisloe Cup at Accor Stadium in Sydney looking to put the misery of their previous loss to Argentina firmly behind them.