Leinster return to European rugby action later today when they take on French side Racing 92 (1pm)
This will be Leinster's first game since losing the previous final against another French side La Rochelle in May.
Leo Cullen's have won all of their 9 fixtures in the United Rugby Championship this year, but face a difficult test when they travel to France on Saturday.
The Top 14 side lie in second place in their domestic table
The likes of French international Gael Fickou, Finn Russell and others will provide a stern test this weekend.
One of the most interesting aspects of the game will be Stuart Lancaster facing off against the team he will be joining next year.
Lancaster has agreed to join the French giants at the end of the season.
Whatever happens it promises to be another European cracker.
Here are more teams for the game later today.
Teams for the game
Leinster
Fullback: 15. Hugo Keenan
Winger: 14.Jimmy O’Brien
Centres: 13. Garry Ringrose (capt),, 12.Charlie Ngatai,
Winger: 11.James Lowe
Outhalf: 10. Ross Byrne 9,. Scrumhalf. Jamison Gibson-Park;
Front row: 1.,Andrew Porter, 2. Dan Sheehan, 3. Michael Ala’alatoa
Second row: 4.James Ryan, 5. Jason Jenkins
Backrow: 6.Ryan Baird, 7. Josh van der Flier, 8. Caelan Doris.
Replacements: Rónan Kelleher, Ed Byrne, Cian Healy, Ross Molony, Jack Conan, Luke McGrath, Harry Byrne, Jamie Osborne.
📥| The team is in
Here is your #LeinsterRugby matchday squad for tomorrow's #HeinekenChampionsCup opener against @Racing92 in Le Havre
©️ Ringrose captains the team
🏉 Trio set for European debuts#RACvLEI | #FromTheGroundUp pic.twitter.com/OUToG8p7dM— Leinster Rugby (@leinsterrugby) December 9, 2022
Racing 92
Fullback: 15. Max Spring
Winger: 14. Christian Wade
Centres: 13.Francis Saili , 12. Gael Fickou
Winger: 11. Juan Imhoff
Outhalf: 10. Finn Russel 9,. Scrumhalf.Nolann le Garrec
Front row: 1.Eddy. Ben Arous, 2. Camille Cat 3. Cedete. Gomes Sa
Second row: 4. Cameron. Woki 5. Fabien Sanconnie
Backrow: 6.Wenceslas.Lauret 7. Ibrahim. Diallo 8. Maxime. Baudonnne
Replacements: J Tarrit, H. Kolingar, T. Nyakane, B. Palu, A. Bresler, B. Chouzenoux, A. Gibert, Klemenczak
𝙇'𝙀𝙉𝙏𝙍𝙀́𝙀 𝙀𝙉 𝙎𝙀𝙄𝙉𝙀
🎟️ https://t.co/Hg1Ydn9AT8@ChampionsCup | round 1 | racing 92 v @leinsterrugby | samedi 10.12 | 14:00 | @StadeOceane | @HAC_Foot pic.twitter.com/WhuXEh5zXL— Racing 92 (@racing92) December 9, 2022