Munster have received a tough draw against reigning champions Saracens in next season's Champions Cup pool stages.
As well as a repeat clash against the team who knocked them out at the semi-final stage in 2017 and 2019, Munster will face Racing 92, who defeated them in the 2018 semi-final.
The French side will visit Thomond Park with former Munster stars Simon Zebo and Donnacha Ryan now part of their team.
Welsh side Ospreys complete a tough Pool 4.
"Racing, Saracens and Munster in the same Pool looks heavy," said Dimitri Yachvili, who made the draw with Bryan Habana in Lausanne, Switzerland.
2019 runners-up Leinster are the top seeds in Pool 1, and they were drawn against Lyon, Northampton Saints, and Benetton.
Connacht, on their return to the competition for the first time since the 2016-17 season, were drawn alongside Toulouse, Gloucester, and Montpellier in Pool 5.
Ulster find themselves in Pool 3 with Clermont Auvergne, Harlequins and Bath.
Ronan O'Gara's first Champions Cup campaign as a head coach will see his La Rochelle side meet Exeter Chiefs, Glasgow Warriors, and Sale Sharks.
Pool 1: Leinster Rugby, Lyon, Northampton Saints, Benetton Rugby
Pool 2: Exeter Chiefs, Glasgow Warriors, La Rochelle, Sale Sharks
Pool 3: ASM Clermont Auvergne, Ulster Rugby, Harlequins, Bath Rugby
Pool 4: Saracens, Munster Rugby, Racing 92, Ospreys
Pool 5: Toulouse, Gloucester Rugby, Connacht Rugby, Montpellier
By Stephen Barry
