Worcester achieved a Guinness Premiership double over Wasps last season, whilst Wasps have won only one of their last five encounters with the Warriors.
London Wasps find themselves at the top of the Premiership table – remarkably it is only the third time that the Londoners have ever topped the pile after a round of matches, round 21 in season 2004/05 and round 3 in 2006/07! Wasps have won their last nine games at Adams Park in all competitions.
Worcester Warriors beat Leeds Carnegie 27-7 at Sixways in the Guinness Premiership on Friday, but away from home have won just once since November 2008: 13-6 at Gloucester in the Premiership on 21 April.
Referee: J P Doyle (5th Premiership game)