This will be a huge game for Wasps captain Rafael Ibanez as he plays against one of his former clubs Castres. 

British & Irish Lions coach Ian McGeechan’s two-time champions failed to get out of their pool last year but they now have Ibanez at the helm in place of the retired Lawrence Dallalgio. 

England wonder boy Danny Cipriani has recovered from an ankle injury while Castres will be led by French skipper Lionel Nallet. 

The last time the two sides met in the competition two years ago, Wasps won both pool encounters before lifting the trophy against Leicester at Twickenham.