Back-to-back Champions Cup winners La Rochelle volition big Leinster - who they person beaten successful the past 2 finals - successful their opening 2023-24 excavation fixture connected 10 December.
Premiership champions Saracens are distant to Bulls successful South Africa connected 9 December.
Glasgow Warriors volition big Northampton connected 8 December with Ulster travelling to Bath a time later.
Bristol Bears unfastened their run against Lyon connected 9 December, while Cardiff volition commencement their Champions Cup campaign with a travel to French champions Toulouse.
The Champions Cup and Challenge Cup competitions released their full excavation fixtures connected Thursday.
Both tournaments play their last-16 matches connected the play of 5-7 April, with the quarter-finals 2 weeks later.
The semi-finals are scheduled for 3-5 May with some finals taking spot astatine the Tottenham Hotspur Stadium - the Challenge Cup last connected 24 May and the Champions Cup a time later.