They have already qualified as the group winners but will be out to do the double over Newport Gwent Dragons when they clash at Rodney Parade on Thursday night as ranking for the quarter-finals is now the key.

Wasps' only blip has been an 13-13 draw at Bayonne but with 21 points already in the bank it is all about going for as high a ranking as possible.

They beat the Welsh region 38-25 in Round 1 at Adams Park with No 8 Billy Vunipola, who will join Saracens at the end of the season, and Joe Simpson among their four try scorers.

Match Facts

• Newport Gwent Dragons have lost their last four matches in all competitions, since beating Rugby Mogliano 53-3 in Round 4.
• The Welsh outfit have beaten English opposition just once in 19 attempts in ERC competitions: 17-11 at home to Bristol on 12 January 2007.
• London Wasps have lost only one of their last nine fixtures in all competitions: 23-30 at Exeter in the Aviva Premiership on 1 December.
• The two teams have met on six occasions in all competitions with Dragons' solo win so far being 30-29 at Adams Park in the LV= Cup on 22 October 2011.