The Irish provinces have been handed their opponents for the upcoming Heineken Champions Cup.
Fixtures for Europe's blue riband competition have been released today.
Leinster and Connacht both have home fixtures to look forward to in their respective pools.
Leinster welcome Bath to the Aviva Stadium on Saturday, December 11th with kick-off at 3.15pm.
Connacht host Stade Francais in Galway the following day at 1pm.
There's a trip for Munster to Coventry for a meeting with Wasps on Sunday, December 11th.
Ulster are in France for a clash with Clermont Auvergne.
Defending champions Toulouse go up against Cardiff on the opening weekend.
The 24 participating teams are split into two pools, with the top eight from each progressing to the last 16.
All sides will play four matches in the pool stage.
Saturday, 11 December: Leinster Rugby v Bath Rugby – Aviva Stadium (KO 3.15pm)
Friday, 17 December: Montpellier Herault Rugby v Leinster Rugby – GGL Stadium (KO 8pm Irish time/9pm local)
Sunday, 16 January: Leinster Rugby v Montpellier Herault Rugby – RDS Arena (KO 1pm)
Saturday, 22 January: Bath Rugby v Leinster Rugby – The Recreation Ground (KO 1pm)
Saturday 11th December: ASM Clermont Auvergne vs Ulster Rugby, Stade Marcel-Michelin (KO 5.30pm)
Friday 17th December Ulster Rugby vs Northampton Saints, Kingspan Stadium (KO 8pm)
Sunday 16th January: Northampton Saints vs Ulster Rugby, Franklin’s Gardens (KO 3.15pm)
Saturday 22nd January: Ulster Rugby vs. ASM Clermont Auvergne, Kingspan Stadium (KO 5.30pm)
Sunday, 12th December: Wasps vs Munster Rugby, Coventry Building Society Arena, (KO 3.15PM)
Saturday, 18th December: Munster Rugby vs Castres Olympique, Thomond Park, (KO 8pm)
Friday, 14th January: Castres Olympique vs Munster Rugby, Stade Pierre Fabre, (KO 8pm)
Sunday, 23rd January: Munster Rugby vs Wasps, Thomond Park, (3.15pm)
Sunday, December 12th: Connacht Rugby vs Stade Francais Paris, Sportsground (KO 1pm)
Sunday, December 19th: Leicester Tigers vs Connacht Rugby, Welford Road, (KO 1pm)
Saturday, January 15th: Connacht Rugby vs Leicester Tigers, Sportsground, (KO: 3.15pm)
Sunday, January 23rd: Stade Francais Paris vs Connacht Rugby, Stade Jean Bouin (KO 2pm)