Ashley Johnson was sin-binned after just 17 seconds as Wasps could only manage a 20-20 draw, with Leinster sealing a quarter-final spot.
England have been handed a major boost with the news that Joe Launchbury should be fit to play again before the end of the season.
Wasps have confirmed the signing of England Saxons scrum-half Dan Robson from Gloucester at the end of the 2014/15 season.
Versatile forward Nick Crosswell and Wasps number eight Ed Jackson are being eyed as new signings by the Dragons for next season.
Tom Varndell will leave Wasps to join Bristol at the end of the season after signing a two-year deal with the Championship side.
Wasps director of rugby Dai Young has hailed Christian Wade's performance as "outstanding", saying he wouldn't swap him for any winger....
Scarlets head coach Wayne Pivac was left frustrated after his side narrowly lost at the Ospreys in their Guinness PRO12 meeting.
Wasps director of rugby Dai Young was pleased that his side at last won away from home this season in the Premiership.
Fly-half Andy Goode claimed a Premiership-record haul of 33 points as Wasps eased to a 48-16 win over London Irish on Sunday.
Wasps are set to record the biggest Premiership home crowd of the season in their first game at the Ricoh Arena against London Irish....
Wasps signed off in style in their final game at Adams Park with a convincing 44-15 win over Castres.
Wasps captain James Haskell admits his side's Adams Park swansong could not have been better after their win over Castres on Sunday.
Despite Sunday's win over Castres, Wasps boss Dai Young has warned his charges against complacency during the rest of the tournament....
Wasps back Elliot Daly has received a three-week ban after pleading guilty to verbally abusing Premiership referee Ian Tempest.
Elliot Daly has been cited for verbally abusing referee Ian Tempest during Wasps' defeat to Exeter this weekend.
Jack Nowell scored two of Exeter's three tries as they beat Wasps 31-15 in their Premiership clash at Sandy Park on Saturday.
Exeter Chiefs travel to Wasps on Saturday hoping for a repeat of their victory over Premiership leaders Northampton a week ago.