Vikingur Reykjavik – Borac Banja Luka
Referee: Jan Petřík CZE (photo)
Assistant Referee 1: Kamil Hájek CZE
Assistant Referee 2: Marek Podaný CZE
Fourth Official: Jan Všetečka CZE
VAR: Miroslav Zelinka CZE
AVAR: Tomáš Kocourek CZE
Referee Observer: Michael Ross NIR
KAA Gent – Omonia Nicosia
Referee: Tamás Bognár HUN
Assistant Referee 1: Balázs Buzás HUN
Assistant Referee 2: Péter Kóbor HUN
Fourth Official: Gergő Bogár HUN
VAR: István Vad HUN
AVAR: Katalin Kulcsár HUN
Referee Observer: Robert Małek POL
Legia Warszawa – Dynamo Minsk
Referee: Atilla Karaoğlan TUR
Assistant Referee 1: Ceyhun Sesigüzel TUR
Assistant Referee 2: Abdullah Özkara TUR
Fourth Official: Çağdaş Altay TUR
VAR: Erkan Engin TUR
AVAR: Onur Özütoprak TUR
Referee Observer: Ruud Bossen NED
HJK Helsinki – Olimpija Ljubljana
Referee: Robert Jones ENG
Assistant Referee 1: Simon Bennett ENG
Assistant Referee 2: Daniel Robathan ENG
Fourth Official: Darren Bond ENG
VAR: Peter Bankes ENG
AVAR: Darren England ENG
Referee Observer: Igor Șațchi MDA
Shamrock Rovers – The New Saints
Referee: Snir Levi ISR
Assistant Referee 1: Omer Barbiro ISR
Assistant Referee 2: Tuval Koltunoff ISR
Fourth Official: Idan Leiba ISR
VAR: Ziv Adler ISR
AVAR: Eli Hakmon ISR
Referee Observer: Hannes Kaasik EST
Petrocub Hincesti – Rapid Wien
Referee: Antoni Bandić BIH
Assistant Referee 1: Amir Kadić BIH
Assistant Referee 2: Marko Zelenika BIH
Fourth Official: Miloš Gigović BIH
VAR: Alen Borošak SVN
AVAR: Dragoslav Perič SVN
Referee Observer: Jens Larsen DEN
TSC Backa Topola – FC Lugano
Referee: Jakob Sundberg DEN
Assistant Referee 1: Victor Skytte DEN
Assistant Referee 2: Jesper Dahl DEN
Fourth Official: Aydin Uslu DEN
VAR: Jonas Hansen DEN
AVAR: Sandi Putros DEN
Referee Observer: Dimitar Mečkarovski MKD
Pafos FC – Astana FK
Referee: Donald Robertson SCO
Assistant Referee 1: David Roome SCO
Assistant Referee 2: Ross Macleod SCO
Fourth Official: Grant Irvine SCO
VAR: Steven McLean SCO
AVAR: Alan Muir SCO
Referee Observer: Domagoj Vučkov CRO
Chelsea FC – FA Noah
Referee: Christian Ciochirca AUT
Assistant Referee 1: Maximilian Weiss AUT
Assistant Referee 2: Michael Obritzberger AUT
Fourth Official: Harald Lechner AUT
VAR: Alan Kijas AUT
AVAR: Josef Spurny AUT
Referee Observer: Draženko Kovačić CRO
FC Copenhagen – Basaksehir FK
Referee: Joey Kooij NED
Assistant Referee 1: Joost van Zuilen NED
Assistant Referee 2: Patrick Inia NED
Fourth Official: Alex Bos NED
VAR: Jeroen Manschot NED
AVAR: Erwin Blank NED
Referee Observer: Nicolae Grigorescu ROU
LASK – Cercle Brugge
Referee: Radoslav Gidzhenov BUL
Assistant Referee 1: Ivo Kolev BUL
Assistant Referee 2: Petar Mitrev BUL
Fourth Official: Vasil Minev BUL
VAR: Vasimir El-Hatib BUL
AVAR: Nikola Popov BUL
Referee Observer: Bariş Şimşek TUR
Real Betis – NK Celje
Referee: Novak Simović SRB
Assistant Referee 1: Nikola Djorović SRB
Assistant Referee 2: Miloš Simović SRB
Fourth Official: Lazar Lukić SRB
VAR: Momčilo Marković SRB
AVAR: Aleksandar Živković SRB
Referee Observer: Karel Vidlák CZE
Djurgardens – Panathinaikos
Referee: Igor Pajač CRO
Assistant Referee 1: Ivan Mihalj CRO
Assistant Referee 2: Vedran Djurak CRO
Fourth Official: Tihomir Pejin CRO
VAR: Michael Fabbri ITA
AVAR: Fran Jović CRO
Referee Observer: Thóroddur Hjaltalín ISL
Apoel – Fiorentina
Referee: François Letexier FRA
Assistant Referee 1: Cyril Mugnier FRA
Assistant Referee 2: Mehdi Rahmouni FRA
Fourth Official: Jérémy Stinat FRA
VAR: Bastien Dechepy FRA
AVAR: Jérémie Pignard FRA
Referee Observer: Pavel Salii KAZ
Vitoria SC – Mlada Boleslav
Referee: Paweł Raczkowski POL
Assistant Referee 1: Radosław Siejka POL
Assistant Referee 2: Krzysztof Myrmus POL
Fourth Official: Wojciech Myć POL
VAR: Paweł Malec POL
AVAR: Daniel Stefański POL
Referee Observer: Ladislav Gádoši SVK
Heart of Midlothian – FC Heidenheim
Referee: Kristoffer Hagenes NOR
Assistant Referee 1: Oystein Ytterland NOR
Assistant Referee 2: Tom Gronevik NOR
Fourth Official: Daniel Higraff NOR
VAR: Tom Hagen NOR
AVAR: Mohammad Aslam NOR
Referee Observer: Alon Yefet ISR
Jagiellonia Bialystok – Molde FK
Referee: Miloš Milanović SRB
Assistant Referee 1: Milan Pašajlić SRB
Assistant Referee 2: Bojan Banović SRB
Fourth Official: Dejan Trifković SRB
VAR: Pascal Müller GER
AVAR: Katrin Rafalski GER
Referee Observer: Nerijus Dunauskas LTU
Larne FC – St. Gallen
Referee: Ishmael Barbara MLT
Assistant Referee 1: Roberto Vella MLT
Assistant Referee 2: Luke Portelli MLT
Fourth Official: Trustin Farrugia Cann MLT
VAR: Gianluca Aureliano ITA
AVAR: Daniele Doveri ITA
Referee Observer: Iain Robertson Brines SCO
