Olimpija Ljubljana – LOSC Lille
Referee: Sven Jablonski GER (photo)
Assistant Referee 1: Lasse Koslowski GER
Assistant Referee 2: Eduard Beitinger GER
Fourth Official: Florian Badstübner GER
VAR: Sascha Stegemann GER
AVAR: Benjamin Brand GER
Referee Observer: Sabri Çelik TUR
Astana FK – GNK Dinamo
Referee: John Beaton SCO
Assistant Referee 1: Daniel McFarlane SCO
Assistant Referee 2: Alan Mulvanny SCO
Fourth Official: Matthew MacDermid SCO
VAR: Andrew Dallas SCO
AVAR: Steven McLean SCO
Referee Observer: Christof Dierick BEL
KI Klaksvik – Slovan Bratislava
Referee: Kristo Tohver EST
Assistant Referee 1: Sander Saga EST
Assistant Referee 2: Sten Klaasen EST
Fourth Official: Juri Frischer EST
VAR: Jonas Hedegaard Hansen DEN
AVAR: Jakob Kehlet DEN
Referee Observer: Thoroddur Hjaltalin ISL
KAA Gent – Zorya Luhansk
Referee: Evangelos Manouchos GRE
Assistant Referee 1: Konstantinos Psarris GRE
Assistant Referee 2: Konstantínos Nikolaidis GRE
Fourth Official: Anastasios Papapetrou GRE
VAR: Aristotelis Diamantopoulos GRE
AVAR: Stefanos Koumbarakis GRE
Referee Observer: Jouni Hyytia FIN
FC Ballkani – Viktoria Plzen
Referee: Marian Barbu ROU
Assistant Referee 1: Mihai Marica ROU
Assistant Referee 2: Imre Bucsi ROU
Fourth Official: Sebastian Colțescu ROU
VAR: Ovidiu Hațegan ROU
AVAR: Radu Petrescu ROU
Referee Observer: Edward Foley IRL
Bodo Glimt – FC Lugano
Referee: Dario Bel CRO
Assistant Referee 1: Goran Pataki CRO
Assistant Referee 2: Marjan Tomas CRO
Fourth Official: Patrik Kolarić CRO
VAR: Duje Strukan CRO
AVAR: Marin Vidulin CRO
Referee Observer: Bariş Şimşek TUR
Beşiktaş – Club Brugge
Referee: David Šmajc SVN
Assistant Referee 1: David Gabrovec SVN
Assistant Referee 2: Tomaž Černe SVN
Fourth Official: Dejan Balažič SVN
VAR: Alen Borošak SVN
AVAR: Dragoslav Perič SVN
Referee Observer: Kenneth Clark SCO
AZ Alkmaar – HSK Zrinjski
Referee: Oleksiy Derevinskyy UKR
Assistant Referee 1: Semen Shlonchak UKR
Assistant Referee 2: Andriy Skrypka UKR
Fourth Official: Dmytro Panchyshyn UKR
VAR: Luca Pairetto ITA
AVAR: Daniele Doveri ITA
Referee Observer: Michail Koukoulakis GRE
HJK Helsinki – Aberdeen FC
Referee: Genc Nuza KOS
Assistant Referee 1: Fatlum Berisha KOS
Assistant Referee 2: Bujar Selimaj KOS
Fourth Official: Dardan Çaka KOS
VAR: Daniele Chiffi ITA
AVAR: Eugenio Abbattista ITA
Referee Observer: Stavros Tritsonis GRE
Breidablik – Maccabi Tel Aviv
Referee: Luka Bilbija BIH
Assistant Referee 1: Damir Lazić BIH
Assistant Referee 2: Amer Macić BIH
Fourth Official: Antoni Bandić BIH
VAR: Fran Jović CRO
AVAR: Ante Čuljak CRO
Referee Observer: Petteri Kari FIN
Aston Villa – Legia Warszawa
Referee: Marco Di Bello ITA
Assistant Referee 1: Davide Imperiale ITA
Assistant Referee 2: Giovanni Baccini ITA
Fourth Official: Matteo Marchetti ITA
VAR: Gianluca Aureliano ITA
AVAR: Lorenzo Maggioni ITA
Referee Observer: Sascha Amhof SUI
AC Fiorentina – KRC Genk
Referee: Joey Kooij NED
Assistant Referee 1: Joost van Zuilen NED
Assistant Referee 2: Roy de Nas NED
Fourth Official: Alex Bos NED
VAR: Jeroen Manschot NED
AVAR: Erwin Blank NED
Referee Observer: Vlado Svilokos CRO
FK Čukarički – Ferencvarosi TC
Referee: Mohammed Al-Emara FIN
Assistant Referee 1: Turkka Valjakka FIN
Assistant Referee 2: Juuso Mantere FIN
Fourth Official: Peiman Simani FIN
VAR: Sören Storks GER
AVAR: Harm Osmers GER
Referee Observer: Konrad Plautz AUT
Eintracht Frankfurt – PAOK FC
Referee: Damian Sylwestrzak POL
Assistant Referee 1: Bartosz Heinig POL
Assistant Referee 2: Adam Karasewicz POL
Fourth Official: Pawel Malec POL
VAR: Bartosz Frankowski POL
AVAR: Krzysztof Jakubik POL
Referee Observer: Hugh Dallas SCO
FC Nordsjaelland – Fenerbahçe
Referee: Jeremie Pignard FRA
Assistant Referee 1: Aurelien Drouet FRA
Assistant Referee 2: Laurent Coniglio FRA
Fourth Official: Thomas Leonard FRA
VAR: Benoît Bastien FRA
AVAR: Eric Wattellier FRA
Referee Observer: Ruud Bossen NED
Spartak Trnava – PFK Ludogorets
Referee: Vitalijs Spasjonņikovs LVA
Assistant Referee 1: Raimonds Tatriks LVA
Assistant Referee 2: Arturs Sakurovs LVA
Fourth Official: Aleksandrs Anufrijevs LVA
VAR: Cesar Soto Grado ESP
AVAR: Jose Munuera Montero ESP
Referee Observer: Elmir Pilav BIH
