Leinster and Ulster have been draw into Pool A with Munster and Connacht residing in Pool B.
Leinster will face Montpellier as soon as once more after drawing them on the pool stage final yr.
Leo Cullen and Stuart Lancaster’s males will even come up in opposition to Bath Rugby.
Ulster have some robust fixtures with Jono Gibbes’ ASM Clermont Auvergne and the talent-filled Northampton Saints going head-to-head with Dan McFarland’s aspect.
Munster will face French aspect Castres Olympique and Gallagher Premiership workforce Wasps of their pool video games.
Finally, Connacht could have a reunion with their former title-winning personnel Pat Lam and John Afoa after they face Bristol Rugby.
Connacht will even play Stade Francais of their group video games.
POOL A (with opponents in brackets)
Stade Rochelais (Bath Rugby, Glasgow Warriors)
Exeter Chiefs (Montpellier Hérault Rugby, Glasgow Warriors)
Leinster Rugby (Montpellier Hérault Rugby, Bath Rugby)
Racing 92 (Northampton Saints, Ospreys)
Sale Sharks (ASM Clermont Auvergne, Ospreys)
Ulster Rugby (ASM Clermont Auvergne, Northampton Saints)
ASM Clermont Auvergne (Sale Sharks, Ulster Rugby)
Northampton Saints (Racing 92, Ulster Rugby)
Ospreys (Racing 92, Sale Sharks)
Montpellier Hérault Rugby (Exeter Chiefs, Leinster Rugby)
Bath Rugby (Stade Rochelais, Leinster Rugby)
Glasgow Warriors (Stade Rochelais, Exeter Chiefs)
POOL B (with opponents in brackets)
Stade Toulousain (Wasps, Cardiff Rugby)
Harlequins (Castres Olympique, Cardiff Rugby)
Munster Rugby (Castres Olympique, Wasps)
Union Bordeaux-Bègles (Leicester Tigers, Scarlets)
Bristol Bears (Stade Français Paris, Scarlets)
Connacht Rugby (Stade Français Paris, Leicester Tigers)
Stade Français Paris (Bristol Bears, Connacht Rugby)
Leicester Tigers (Union Bordeaux-Bègles, Connacht Rugby)
Scarlets (Union Bordeaux-Bègles, Bristol Bears)
Castres Olympique (Harlequins, Munster Rugby)
Wasps (Stade Toulousain, Munster Rugby)
Cardiff Rugby (Stade Toulousain, Harlequins)
Round 1 – 10/11/12 December
Round 2 – 17/18/19 December
Round 3 – 14/15/16 January 2022
Round 4 – 21/22/23 January 2022
Round of 16 (1st leg) – 8/9/10 April 2022
Round of 16 (2nd leg) – 15/16/17 April 2022
Quarter-finals – 6/7/8 May 2022
Semi-finals – 13/14/15 May 2022
Challenge Cup last – Friday 27 May 2022; Stade Vélodrome, Marseille
Heineken Champions Cup last – Saturday 28 May 2022; Stade Vélodrome, Marseille
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