English rugby's governing bodies say they are committed to expanding the PREM with sides from England rather than clubs from Wales.
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?
The Welsh Rugby Union has confirmed it will cut one of its four men's professional teams from the 2028/29 season.
Wales failed to score a single point once more against South Africa as the Springboks ran out convincing 43-0 Nations Championship winners in Durban.
Ireland have brought back their big names for the crunch Nations Championship clash against the All Blacks at Eden Park on Saturday.
Argentina outscored Wales by five tries to three as they won 35-21 in the Nations Championship on Saturday to make up for a home loss last weekend.
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