Group A
Manchester United, Fenerbahce, Feyenoord, Zorya Luhansk
Group B
Olympiacos, Apoel Nicosia, Young Boys, Astana
Group C
Anderlecht, St Etienne, Mainz, Qabala
Group D
Zenit, AZ Alkmaar, Maccabi Tel Aviv, Dundalk
Group E
Viktoria Plzen, Roma, Austria Vienna, Astra
Group F
Athletic Bilbao, Genk, Rapid Vienna, Sassuolo
Group G
Ajax, Standard Liege, Celta Vigo, Panathinaikos
Group H
Shakhtar Donetsk, Braga, Gent, Konyaspor
Group I
Schalke, Salzburg, Krasnodar, Nice
Group J
Fiorentina, PAOK, Slovan Liberec, Qarabag
Group K
Internazionale, Sparta Prague, Southampton, Hapoel Beer Sheva
Group L
Villarreal, Steaua Bucharest, Zurich, Osmanlispor