TSC Bačka Topola – Olympiakos SFP
Referee: Benoît Bastien FRA (photo)
Assistant Referee 1: Hicham Zakrani FRA
Assistant Referee 2: Aurelien Berthomieu FRA
Fourth Official: Ruddy Buquet FRA
VAR: Benoît Millot FRA
AVAR: Nicolas Danos FRA
Referee Observer: Bariş Şimşek TUR
SC Freiburg – West Ham United
Referee: Mohammed Al-Hakim SWE
Assistant Referee 1: Fredrik Klyver SWE
Assistant Referee 2: Max Wilde SWE
Fourth Official: Kristoffer Karlsson SWE
VAR: Jerôme Brisard FRA
AVAR: Clay Ruperti NED
Referee Observer: Carlos Clos Gomez ESP
Olympique de Marseille – Brighton & Hove Albion
Referee: Mykola Balakin UKR
Assistant Referee 1: Oleksandr Berkut UKR
Assistant Referee 2: Dmytro Zaporozhenko UKR
Fourth Official: Yaroslav Kozyk UKR
VAR: Piotr Lasyk POL
AVAR: Tomasz Kwiatkowski POL
Referee Observer: Roberto Rosetti ITA
AEK – Ajax
Referee: Matej Jug SVN
Assistant Referee 1: Matej Žunič SVN
Assistant Referee 2: Manuel Vidali SVN
Fourth Official: David Šmajc SVN
VAR: Paolo Valeri ITA
AVAR: Fabio Maresca ITA
Referee Observer: Cyril Zimmermann SUI
Real Betis – Sparta Praha
Referee: Duje Strukan CRO
Assistant Referee 1: Bojan Zobenica CRO
Assistant Referee 2: Alen Jakšić CRO
Fourth Official: Fran Jović CRO
VAR: Nejc Kajtazovič SVN
AVAR: Tiago Martins POR
Referee Observer: Jon Skjervold NOR
Aris Limassol – Rangers FC
Referee: Horațiu Feșnic ROU
Assistant Referee 1: Valentin Avram ROU
Assistant Referee 2: Alexandru Cerei ROU
Fourth Official: Andrei Chivulete ROU
VAR: Ovidiu Hațegan ROU
AVAR: Cătălin Popa ROU
Referee Observer: Juan Fernandez Marin ESP
Sporting CP – Atalanta BC
Referee: Alejandro Hernandez Hernandez ESP
Assistant Referee 1: Jose Naranjo Perez ESP
Assistant Referee 2: Diego Sanchez Rojo ESP
Fourth Official: Alejandro Muniz Ruiz ESP
VAR: Guillermo Cuadra Fernandez ESP
AVAR: Cesar Soto Grado ESP
Referee Observer: Volodymyr Petrov UKR
Rakow Czestochowa – Sturm Graz
Referee: Aliyar Aghayev AZE
Assistant Referee 1: Zeynal Zeynalov AZE
Assistant Referee 2: Akif Amirəli AZE
Fourth Official: Kamal Umudlu AZE
VAR: Jeroen Manschot NED
AVAR: Erwin Blank NED
Referee Observer: Bernardino Gonzalez Vazquez ESP
Liverpool FC – Union St. Gilloise
Referee: Morten Krogh DEN
Assistant Referee 1: Dennis Rasmussen DEN
Assistant Referee 2: Steffen Bramsen DEN
Fourth Official: Mikkel Redder DEN
VAR: Roi Reinshreiber ISR
AVAR: Massimiliano Irrati ITA
Referee Observer: Marinus Koopman NED
Toulouse FC – LASK Linz
Referee: Nicolas Walsh SCO
Assistant Referee 1: Graeme Stewart SCO
Assistant Referee 2: Calum Spence SCO
Fourth Official: Christopher Graham SCO
VAR: John Beaton SCO
AVAR: Steven McLean SCO
Referee Observer: Elmir Pilav BIH
Villarreal CF – Stade Rennais
Referee: Harald Lechner AUT
Assistant Referee 1: Andreas Heidenreich AUT
Assistant Referee 2: Maximilian Kolbitsch AUT
Fourth Official: Julian Weinberger AUT
VAR: Alan Kijas AUT
AVAR: Bastian Dankert GER
Referee Observer: Marian Ružbarsky SVK
Maccabi Haifa – Panathinaikos
Referee: Antonio Nobre POR
Assistant Referee 1: Pedro Martins POR
Assistant Referee 2: Paulo Bras POR
Fourth Official: Bruno Vieira POR
VAR: Luis Godinho POR
AVAR: Hugo Miguel POR
Referee Observer: Pascal Garibian FRA
AS Roma – Servette FC
Referee: Igor Pajač CRO
Assistant Referee 1: Ivan Mihalj CRO
Assistant Referee 2: Vedran Djurak CRO
Fourth Official: Patrik Kolarić CRO
VAR: Ivan Bebek CRO
AVAR: Juan Martinez Munuera ESP
Referee Observer: David Malcolm NIR
Slavia Praha – Sheriff Tiraspol
Referee: Willy Delajod FRA
Assistant Referee 1: Erwan Finjean FRA
Assistant Referee 2: Philippe Jeanne FRA
Fourth Official: Thomas Leonard FRA
VAR: Pierre Gaillouste FRA
AVAR: Bastien Dechepy FRA
Referee Observer: Michail Argyrou CYP
Molde FK – Bayer Leverkusen
Referee: Anastasios Papapetrou GRE
Assistant Referee 1: Tryfon Petropoulos GRE
Assistant Referee 2: Iordanis Aptosoglou GRE
Fourth Official: Andreas Gamaris GRE
VAR: Evangelos Manouchos GRE
AVAR: Angelos Evangelou GRE
Referee Observer: Petteri Kari FIN
BK Häcken – Qarabag FK
Referee: Sebastian Gishamer AUT
Assistant Referee 1: Roland Riedel AUT
Assistant Referee 2: Santino Schreiner AUT
Fourth Official: Stefan Ebner AUT
VAR: Christian Ciochirca AUT
AVAR: Alexander Harkam AUT
Referee Observer: Ante Vučemilović-Šimunović CRO
