'The whole Pro14 Rainbow Cup has turned into a mishmash competition' Former Wales captain Sam Warburton thinks the Pro14 is making too many changes. By Ciarán Kennedy Wednesday 21 Apr 2021, 10:00 PM Wed 10:00 PM 10,498 Views 13 Comments Former Lions and Wales captain Sam Warburton. Image: PCA Image: PCA FORMER WALES AND British and Irish Lions captain Sam Warburton says the Pro14′s ill-fated Rainbow Cup has turned into a “mishmash” competition following today’s confirmation that the four South African teams will not be travelling to play the existing Pro14 sides this season. Concerns surrounding the feasibility of the originally proposed Rainbow Cup format had been growing in recent weeks, and the inevitable news landed earlier today as the Pro14 confirmed the competition will now proceed as a ‘dual tournament’ instead.