Six Nations and SANZAAR have publicly outlined their ambitious plans to launch a new international rugby tournament in three years.
The competition, featuring all Six Nations and SANZAAR teams plus two invitational unions, would take place every other year in the existing July and November international rugby windows, in non-World Cup and Lions tour years.
It would be owned and operated by Six Nations and SANZAAR, the body which oversees Super Rugby and The Rugby Championship on behalf of South Africa, New Zealand, Australia and Argentina, while World Rugby would create a new second-tier competition with a view to facilitate promotion and relegation between the competitions.