It has been labelled a "tectonic shift", set to shake up the world of rugby union, but what is the Nations Championship, what have been the results so far, and what is the schedule this November?
Andy Farrell's Ireland will head into November's Nations Championship without injured trio Jack Conan, Caelan Doris and Jack Crowley, but Jamison Gibson-Park has been included.
A ruthless All Blacks display ensured they will end their home block of rugby's inaugural Nations Championship with three wins from three, after emphatically beating Ireland 40-21 at Eden Park.
Ireland have brought back their big names for the crunch Nations Championship clash against the All Blacks at Eden Park on Saturday.
A much-changed Ireland side overcame Japan 36-20 to make it two wins from two in the Nations Championship.
Sean Jansen will win his first cap in a much-changed Ireland side for Saturday's Nations Championship clash with Japan in Australia.
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