WASPS have been drawn in Pool 2 of the European Rugby Champions Cup, alongside teams from Ireland, France and the Aviva Premiership.
Dai Young's team have been grouped with Harlequins, Castres and Leinster in next season's premier club competition, with only the winner guaranteed to go through.
This is the first time the Champions Cup will be played, taking over from the Heineken Cup, with the top 20 teams in Europe involved.
Wasps earned their place in the competition with a two-legged win over Stade Francais last month, after finishing seventh in the Aviva Premiership.
Full draw: Pool 1: Saracens, Munster, Clermont Auvergne, Sale Sharks
Pool 2: Leinster, Castres, Harlequins, London Wasps
Pool 3: Toulon, Leicester Tigers, Ulster, Scarlets
Pool 4: Glasgow Warriors, Montpellier, Bath, Toulouse
Pool 5: Northampton Saints, Racing Metro, Ospreys, Benetton Treviso