Six Nations bosses have officially announced a new international tournament is set to begin in 2026.
The biennial competition will feature all teams from the Six Nations and the Rugby Championship in the southern hemisphere, while two other countries, likely to be Japan and Fiji initially, will also be invited.
Six Nations Rugby confirmed it is working with SANZAAR, the organisation which includes South Africa, New Zealand, Australia and Argentina, on a new competition to take place in the existing July and November international windows. The Six Nations Championship will remain as it is.