Euro heavyweights go head-to-head
Triple winners Toulon face a tough pool, featuring English sides Bath and Wasps, as well as three-times former winners Leinster in the draw for the 2015/16 Champions Cup.
Australian wing Drew Mitchell's brilliant late try ensured Toulon became the first club to win three successive European titles – as they beat French rivals Clermont 24-18 in a thrilling Final at Twickenham last month.
Next season, the Top 14 giants are in Pool Five – alongside Bath, last season's Premiership finalists Wasps, and Leinster, champions in 2009, 2011 and 2012.
Reigning English Premiership champions Saracens and semifinalists in the Champions Cup are in Pool One with Ulster, four-time winners Toulouse, and newcomers Oyonnax.
The draw made at competition organisers' headquarters in Neuchatel, Switzerland, placed Glasgow in Pool Three with Northampton, Racing Metro and Scarlets.
Clermont have Ospreys, Exeter and Bordeaux for company in Pool Two, while Pool Four comprises Top 14 winners Stade Francais, Munster, Leicester and Treviso.
The group stages get underway on November 12, with the Final in Lyon on May 14, 24 hours after the French venue stages the Challenge Cup Final.
The 2015/16 Champions Cup pools
Pool One: Saracens, Ulster Rugby, Toulouse, Oyonnax
Pool Two: ASM Clermont Auvergne, Ospreys, Exeter Chiefs, Bordeaux-Begles
Pool Three: Glasgow Warriors, Northampton Saints, Racing 92, Scarlets
Pool Four: Stade Francais Paris, Munster Rugby, Leicester Tigers, Benetton Treviso
Pool Five: Bath Rugby, RC Toulon, Leinster Rugby, Wasps
The 2015/16 Challenge Cup pools
Pool One: Connacht Rugby, Brive, Newcastle Falcons, Enisei-STM
Pool Two: Sale Sharks, Newport Gwent Dragons, Castres Olympique, Pau
Pool Three: Montpellier, Harlequins, Cardiff Blues, Cammi Calvisano
Pool Four: La Rochelle, Gloucester Rugby, Zebre Rugby, Worcester Warriors
Pool Five: Edinburgh Rugby, London Irish, Grenoble, Agen
2015/16 Tournament weekends
Round One: 12/13/14/15 November
Round Two: 19/20/21/22 November
Round Three: 10/11/12/13 December
Round Four: 17/18/19/20 December
Round Five: 14/15/16/17 January 2016
Round Six: 21/22/23/24 January 2016
Quarterfinals: 7/8/9/10 April 2016
Semifinals: 22/23/24 April 2016
Finals: 13/14 May 2016
