The 32 teams were drawn into eight groups of four.
Group A: İstanbul Başakşehir, Fiorentina, Hearts, RFS
Group B: West Ham, FCSB, Anderlecht, Silkeborg
Group C: Villarreal, Hapoel Beer-Sheva, Austria Wien, Lech Poznań
Group D: Partizan, Köln, Nice, Slovácko
Group E: AZ Alkmaar, Apollon Limassol, Vaduz, Dnipro-1
Group F: Gent, Molde, Shamrock Rovers, Djurgården
Group G: Slavia Praha, CFR Cluj, Sivasspor, Ballkani
Group H: Basel, Slovan Bratislava, Žalgiris Vilnius, Pyunik
The group stage is played on Thursdays from 8 September to 3 November on the same night as the UEFA Europa League games, kicking off at 18:45 CET and 21:00 CET.
Group winners advance directly to the round of 16.
Group runners-up Progress to the knockout round playoffs, where they will face one of eight teams transferring from the UEFA Europa League having finished third in their groups.
