The full draw for the UEFA Europa League was conducted in Monaco on Friday.
UEFA club competition debutants Brighton will lock horns with European heavyweights Ajax and Marseille in the 2023-24 UEFA Europa League group stage.
Teams in every group face each other home and away. The top three clubs in each group will continue their European campaigns in the new year.
Group winners will progress to the round of 16.
Group runners-up go into the knockout round play-offs, where they will take on the third-placed UEFA Champions League teams for spots in the round of 16.
Third-placed sides transfer to the UEFA Europa Conference League knockout round play-offs, where they play the group runners-up from that competition.
All the groups for Europa League
Group A: West Ham, Olympiacos, Freiburg, TSC Bracka Topola
Group B: Ajax, Marseille, Brighton, AEK Athens
Group C: Rangers, Real Betis, Sparta Prague, Aris Limassol
Group D: Atalanta, Sporting Lisbon, Sturm Graz, Rakow Czestochowa
Group E: Liverpool, LASK, Union St-Gilloise, Toulouse
Group F: Villarreal, Rennes, Maccabi Haifa, Panathinaikos
Group G: Roma, Slavia Prague, Sheriff Tiraspol, Servette
Group H: Bayer Leverkusen, Qarabag, Molde, Hacken
Matchday 1: 21 September 2023
Matchday 2: 5 October 2023
Matchday 3: 26 October 2023
Matchday 4: 9 November 2023
Matchday 5: 30 November 2023
Matchday 6: 14 December 2023