In 2013--14, the play-off involved said Top 14 club and the seventh-placed club in the English Premiership; in subsequent years, the play-off will also include two sides from Pro12 in the Celtic nations and Italy.
In 2013--14, the play-off involved said Top 14 club and the seventh-placed club in the English Premiership. Initially, plans were for the play-off in subsequent years to also include two sides from Pro12 in the Celtic nations and Italy.