HJK Helsinki – Qarabag FK
Referee: Willy Delajod (FRA, photo)
Assistant Referee 1: Erwan Finjean (FRA)
Assistant Referee 2: Philippe Jeanne (FRA)
Fourth Official: Thomas Leonard (FRA)
VAR: Benoît Millot (FRA)
AVAR: Pierre Gaillouste (FRA)
Referee Observer: Ichko Lozev (BUL)
BK Häcken – Zalgiris Vilnius
Referee: Antonio Nobre (POR)
Assistant Referee 1: Pedro Ribeiro (POR)
Assistant Referee 2: Paulo Bras (POR)
Fourth Official: Helder Malheiro (POR)
VAR: Tiago Martins (POR)
AVAR: Andre Narciso (POR)
Referee Observer: Levan Paniashvili (GEO)
Breidablik – HSK Zrinjski
Referee: Anastasios Papapetrou (GRE)
Assistant Referee 1: Tryfonas Petropoulos (GRE)
Assistant Referee 2: Iordanis Aptosoglou (GRE)
Fourth Official: Andreas Gamaris (GRE)
VAR: Angelos Evangelou (GRE)
AVAR: Spyridon Zampalas (GRE)
Referee Observer: Rien Koopman (NED)
Bate Borisov – Sheriff Tiraspol
Referee: Tamas Bognar (HUN)
Assistant Referee 1: Balazs Buzas (HUN)
Assistant Referee 2: Peter Kobor (HUN)
Fourth Official: Adam Farkas (HUN)
VAR: Dennis Johan Higler (NED)
AVAR: Clay Ruperti (NED)
Referee Observer: Drago Kos (SVN)
PFK Ludogorets – Astana FK
Referee: Anthony Taylor (ENG)
Assistant Referee 1: Constantine Hatzidakis (ENG)
Assistant Referee 2: Neil Davies (ENG)
Fourth Official: Jarred Gillett (ENG)
VAR: Darren England (ENG)
AVAR: Tony Harrington (ENG)
Referee Observer: Frank De Bleeckere (BEL)
KRC Genk – Olympiakos SFP
Referee: Tobias Stieler (GER)
Assistant Referee 1: Christian Gittelmann (GER)
Assistant Referee 2: Mark Borsch (GER)
Fourth Official: Harm Osmers (GER)
VAR: Bastian Dankert (GER)
AVAR: Sören Storks (GER)
Referee Observer: Uno Tutk (EST)
SK Dnipro – Slavia Praha
Referee: Jesus Gil Manzano (ESP)
Assistant Referee 1: Angel Nevado Rodriguez (ESP)
Assistant Referee 2: Javier Martínez Nicolas (ESP)
Fourth Official: Miguel Ortiz Arias (ESP)
VAR: Guillermo Cuadra Fernandez (ESP)
AVAR: Francisco Hernandez Maeso (ESP)
Referee Observer: Jorn-West Larsen (DEN)
