Midtjylland – Sturm Graz
Referee: Matej Jug (SVN, photo)
Assistant Referee 1: Matej Žunič (SVN)
Assistant Referee 2: Manuel Vidali (SVN)
Fourth Official: Alen Borošak (SVN)
VAR: Nejc Kajtazović (SVN)
AVAR: Asmir Sagrković (SVN)
Referee Observer: Erol Ersoy (TUR)
Feyenoord – Lazio
Referee: Irfan Peljto (BIH)
Assistant Referee 1: Davor Beljo (BIH)
Assistant Referee 2: Damir Lazić (BIH)
Fourth Official: Miloš Gigovic (BIH)
VAR: Bastian Dankert (GER)
AVAR: Alejandro Hernandez Hernandez (ESP)
Referee Observer: Michail Argyrou (CYP)
Real Sociedad – Manchester United
Referee: Georgi Kabakov (BUL)
Assistant Referee 1: Martin Margaritov (BUL)
Assistant Referee 2: Diyan Valkov (BUL)
Fourth Official: Ivaylo Stoyanov (BUL)
VAR: Marco Fritz (GER)
AVAR: Tomasz Kwiatkowski (POL)
Referee Observer: Murat Ilgaz (TUR)
Sheriff – Omonia
Referee: Fran Jović (CRO)
Assistant Referee 1: Hrvoje Radić (CRO)
Assistant Referee 2: Luka Pušic (CRO)
Fourth Official: Ante Culjak (CRO)
VAR: Michael Fabbri (ITA)
AVAR: Alessandro Di Paolo (ITA)
Referee Observer: Konrad Plautz (AUT)
Qarabag – Freiburg
Referee: Aleksei Kulbakov (BLR)
Assistant Referee 1: Dmitri Zhuk (BLR)
Assistant Referee 2: Oleg Maslyanko (BLR)
Fourth Official: Dzmitry Dzmitryieu (BLR)
VAR: Tiago Martins (POR)
AVAR: Hugo Miguel (POR)
Referee Observer: Georgios Bikas (GRE)
Olympiakos – Nantes
Referee: Serhiy Boiko (UKR)
Assistant Referee 1: Valentyn Kutsev (UKR)
Assistant Referee 2: Volodymyr Volodin (UKR)
Fourth Official: Anatoliy Abdula (UKR)
VAR: Piotr Lasyk (POL)
AVAR: Pawel Pskit (POL)
Referee Observer: Stefano Podeschi (SMR)
Trabzonspor – Ferencvaros
Referee: Harm Osmers (GER)
Assistant Referee 1: Robert Kempter (GER)
Assistant Referee 2: Dominik Schaal (GER)
Fourth Official: Robert Schröder (GER)
VAR: Christian Dingert (GER)
AVAR: Sören Storks (GER)
Referee Observer: Elmir Pilav (BIH)
AS Monaco – Crvena Zvezda
Referee: Serdar Gözübüyük (NED)
Assistant Referee 1: Joost van Zuilen (NED)
Assistant Referee 2: Johan Balder (NED)
Fourth Official: Jochem Kamphuis (NED)
VAR: Jeroen Manschot (NED)
AVAR: Rob Dieperink (NED)
Referee Observer: Stefan Messner (AUT)
Arsenal – Zürich
Referee: Erik Lambrechts (BEL)
Assistant Referee 1: Jo De Weirdt (BEL)
Assistant Referee 2: Rien Vanyzere (BEL)
Fourth Official: Jasper Vergoote (BEL)
VAR: Dennis Higler (NED)
AVAR: Massimiliano Irrati (ITA)
Referee Observer: Hugh Dallas (SCO)
Bodo Glimt – PSV
Referee: Donatas Rumšas (LTU)
Assistant Referee 1: Aleksandr Radius (LTU)
Assistant Referee 2: Dovydas Sužiedelis (LTU)
Fourth Official: Robertas Valikonis (LTU)
VAR: Guillermo Cuadra Fernandez (ESP)
AVAR: Xavier Estrada Fernandez (ESP)
Referee Observer: Milorad Mažić (SRB)
Dynamo Kyiv – Fenerbahçe
Referee: Duje Strukan (CRO)
Assistant Referee 1: Bojan Zobenica (CRO)
Assistant Referee 2: Alen Jakšić (CRO)
Fourth Official: Marin Vidulin (CRO)
VAR: Luca Pairetto (ITA)
AVAR: Tihomir Pejin (CRO)
Referee Observer: Michael Riley (ENG)
Rennes – AEK Larnaca
Referee: Mohammed Al-Hakim (SWE)
Assistant Referee 1: Fredrik Klyver (SWE)
Assistant Referee 2: Max Wilde (SWE)
Fourth Official: Bojan Pandžić (SWE)
VAR: Paolo Valeri (ITA)
AVAR: Roi Reinshreiber (ISR)
Referee Observer: Jan Wegereef (NED)
AS Roma – Ludogorets
Referee: Nikola Dabanović (MNE)
Assistant Referee 1: Milovan Djukić (MNE)
Assistant Referee 2: Vladan Todorović (MNE)
Fourth Official: Miloš Savović (MNE)
VAR: Pol van Boekel (NED)
AVAR: Bartosz Frankowski (POL)
Referee Observer: Uno Tutk (EST)
Real Betis – HJK Helsinki
Referee: William Collum (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Alan Mulvanny (SCO)
Fourth Official: David Dickinson (SCO)
VAR: Stuart Attwell (ENG)
AVAR: Fedayi San (SUI)
Referee Observer: Vladimir Petrov (UKR)
Union St. Gilloise – Union Berlin
Referee: Andris Treimanis (LVA)
Assistant Referee 1: Haralds Gudermanis (LVA)
Assistant Referee 2: Aleksejs Spasjoņņikovs (LVA)
Fourth Official: Aleksandrs Golubevs (LVA)
VAR: Marco Guida (ITA)
AVAR: Fabio Maresca (ITA)
Referee Observer: Stephane Lannoy (FRA)
Braga – Malmö
Referee: Ruddy Buquet (FRA)
Assistant Referee 1: Cyril Gringore (FRA)
Assistant Referee 2: Guillaume Deabrt (FRA)
Fourth Official: Bastien Dechepy (FRA)
VAR: Benoît Millot (FRA)
AVAR: Jerôme Brisard (FRA)
Referee Observer: Iain Robertson Brines (SCO)
Referee Observer: Iain Robertson Brines (SCO)
