Unless the Dragons lift Europe 's second - tier Challenge Cup .
They will be rank outsiders away to French heavyweights Montpellier in the semi-finals , Blues will have to finish in the top six to sneak into next season 's Champions Cup .
Unless the Dragons lift Europe 's second - tier Challenge Cup , and they will be rank outsiders away to French heavyweights Montpellier in the semi-finals , Blues will have to finish in the top six to sneak into next season 's Champions Cup .