Cardiff Blues coach Danny Wilson is confident on the ability of his side.
"For us as a group, and for the region as a whole, it's a massive opportunity to go and have a big day out in a European final, which we're all extremely motivated by.
The opposition we're facing is a very strong one but we're at the Arms Park with a derby feel about it and those are the days and occasions that we want to be part of.''

Cardiff Blues have only reached the Challenge Cup semi-finals once before, in 2010 when they went on to win the competition, while Pau are featuring in the last four for the first time since 2005.

Hello and welcome to Ultimate Rugby's coverage of the European Challenge Cup. Today sees Cardiff Blues take on Pau in the semi-final for a place in the final against Gloucester at the San Mames Stadium in Bilbao on May 11. Join me for kick off in 15 minutes along with live updates and coverage throughout the game.

Of the 48 Challenge Cup semi-finals to date (including matches over two legs) there have been just 10 wins by away clubs – a success rate of 21%