21 September 2023
Union St. Gilloise – Toulouse FC
Referee: Rohit Saggi NOR (photo)
Assistant Referee 1: Morten Jensen NOR
Assistant Referee 2: Anders Dale NOR
Fourth Official: Kai Steen NOR
VAR: Jeroen Manschot NED
AVAR: Mohammad Aslam NOR
Referee Observer: Edgar Steinborn GER
LASK Linz – Liverpool FC
Referee: Marco Di Bello ITA
Assistant Referee 1: Giorgio Peretti ITA
Assistant Referee 2: Giovanni Baccini ITA
Fourth Official: Rosario Abisso ITA
VAR: Michael Fabbri ITA
AVAR: Gianluca Aureliano ITA
Referee Observer: Murat Ilgaz TUR
Stade Rennais – Maccabi Haifa
Referee: Harm Osmers GER
Assistant Referee 1: Robert Kempter GER
Assistant Referee 2: Dominik Schaal GER
Fourth Official: Florian Badstübner GER
VAR: Bastian Dankert GER
AVAR: Alper Ulusoy TUR
Referee Observer: Frank De Bleeckere BEL
Panathinaikos – Villarreal
Referee: Craig Pawson ENG
Assistant Referee 1: Simon Bennett ENG
Assistant Referee 2: Lee Betts ENG
Fourth Official: John Brooks ENG
VAR: Darren England ENG
AVAR: Peter Bankes ENG
Referee Observer: Andreas Schluchter SUI
Servette FC – Slavia Praha
Referee: Giorgi Kruashvili GEO
Assistant Referee 1: Levan Varamishvili GEO
Assistant Referee 2: Zaza Pipia GEO
Fourth Official: Aleko Aptsiauri GEO
VAR: Pawel Pskit POL
AVAR: Piotr Lasyk POL
Referee Observer: Stefan Johannesson SWE
Sheriff Tiraspol – AS Roma
Referee: Andris Treimanis LVA
Assistant Referee 1: Haralds Gudermanis LVA
Assistant Referee 2: Aleksejs Spasjonņikovs LVA
Fourth Official: Aleksandrs Golubevs LVA
VAR: Christian Dingert GER
AVAR: Benjamin Brand GER
Referee Observer: Neale Barry ENG
Bayer Leverkusen – BK Häcken
Referee: Manfredas Lukjančukas LTU
Assistant Referee 1: Mangirdas Mirauskas LTU
Assistant Referee 2: Vytenis Kazlauskas LTU
Fourth Official: Vilius Paulauskas LTU
VAR: Massimiliano Irrati ITA
AVAR: Abdulkadir Bitigen TUR
Referee Observer: Jan Wegereef NED
Qarabag FK – Molde FK
Referee: John Beaton SCO
Assistant Referee 1: Daniel McFarlane SCO
Assistant Referee 2: Douglas Potter SCO
Fourth Official: Matthew MacDermid SCO
VAR: Nicolas Walsh SCO
AVAR: Steven McLean SCO
Referee Observer: Shmuel Shteif ISR
West Ham United – TSC Bačka Topola
Referee: Filip Glova SVK
Assistant Referee 1: Daniel Polaček SVK
Assistant Referee 2: Peter Bednar SVK
Fourth Official: Michal Očenaš SVK
VAR: Alejandro Hernandez Hernandez ESP
AVAR: Dennis Higler NED
Referee Observer: Konrad Plautz AUT
Olympiakos – SC Freiburg
Referee: Allard Lindhout NED
Assistant Referee 1: Rogier Honig NED
Assistant Referee 2: Patrick Inia NED
Fourth Official: Alex Bos NED
VAR: Clay Ruperti NED
AVAR: Erwin Blank NED
Referee Observer: Vladimir Šajn SVN
AFC Ajax – Olympique de Marseille
Referee: Maurizio Mariani ITA
Assistant Referee 1: Daniele Bindoni ITA
Assistant Referee 2: Alberto Tegoni ITA
Fourth Official: Giovanni Ayroldi ITA
VAR: Aleandro Di Paolo ITA
AVAR: Nejc Kajtazovič SVN
Referee Observer: Thomas Einwaller AUT
Brighton & Hove Albion – AEK Athens
Referee: Kristo Tohver EST
Assistant Referee 1: Silver Koiv EST
Assistant Referee 2: Sten Klaasen EST
Fourth Official: Joonas Jaanovits EST
VAR: Juan Martínez Munuera ESP
AVAR: Pol van Boekel NED
Referee Observer: Costas Kapitanis CYP
Sparta Praha – Aris Limassol
Referee: Jerôme Brisard FRA
Assistant Referee 1: Alexis Auger FRA
Assistant Referee 2: Aurelien Berthomieu FRA
Fourth Official: Thomas Léonard FRA
VAR: Eric Wattellier FRA
AVAR: Willy Delajod FRA
Referee Observer: Augustus Constantin ROU
Rangers FC – Real Betis
Referee: Lawrence Visser BEL
Assistant Referee 1: Rien Vanyzere BEL
Assistant Referee 2: Thibaud Nijssen BEL
Fourth Official: Kevin Van Damme BEL
VAR: Bram Van Driessche BEL
AVAR: Tiago Martins POR
Referee Observer: Joao Ferreira POR
Atalanta BC – Rakow Czestochowa
Referee: Roi Reinshreiber ISR
Assistant Referee 1: Sagi Metzamber ISR
Assistant Referee 2: Matityahu Yakobov ISR
Fourth Official: Idan Leiba ISR
VAR: Marco Fritz GER
AVAR: Ivan Bebek CRO
Referee Observer: Edward Foley IRL
Sturm Graz – Sporting CP
Referee: Nikola Dabanović MNE
Assistant Referee 1: Vladan Todorović MNE
Assistant Referee 2: Srdjan Jovanović MNE
Fourth Official: Miloš Bošković MNE
VAR: Jochem Kamphuis NED
AVAR: Richard Martens NED
Referee Observer: Jorn-West Larsen DEN