It will have 24 teams in it
World Rugby has announced a new 24-team 'Nations Championship' that will replace the summer and autumn tours.
The tournament - which starts in 2026 - will have a top division that includes the 10 sides from the Six Nations and Rugby Championship.
Japan and Fiji are expected to be the other two top-flight teams and there will be no promotion and relegation until 2030.
The World Cup will also be expanded from 20 to 24 teams from the 2027 edition in Australia.

Andy Farrell Names Ireland Team For Six Nations Game Against Italy
Thursday Morning Sports Update
Robbie Keane Insists He's Content Where He Is Amid Vacant Manger Job At Tottenham
Kildare’s Lauren Walsh Is Off To A Good Start At The Saudi Ladies International
It's Understood Tottenham Have Sacked Manager Thomas Frank
McIlroy States There Is No Need For Men's Golf Fifth Major Championship
Wednesday Morning Sports Update
John Fogarty Remains Hopeful For Ireland's Six Nations Game Against Italy