Panathinaikos – Dnipro
Referee: Bastian Dankert (GER)
Assistant Referee 1: Dominik Schaal (GER)
Assistant Referee 2: Marcel Unger (GER)
Fourth Official: Daniel Schlager (GER)
VAR: Sascha Stegemann (GER)
AVAR: Benjamin Brand (GER)
Referee Observer: Vlado Svilokos (CRO)
Olimpija Ljubljana – PFK Ludogorets
Referee: Christian Dingert (GER)
Assistant Referee 1: Robert Kempter (GER)
Assistant Referee 2: Benedikt Kempkes (GER)
Fourth Official: Florian Badstübner (GER)
VAR: Pascal Müller (GER)
AVAR: Mike Pickel (GER)
Referee Observer: Jorn West Larsen (DEN)
Bate Borisov – Aris Limassol
Referee: Morten Krogh (DEN)
Assistant Referee 1: Dennis Rasmussen (DEN)
Assistant Referee 2: Steffen Bramsen (DEN)
Fourth Official: Mikkel Redder (DEN)
VAR: Jeroen Manschot (NED)
AVAR: Clay Ruperti (NED)
Referee Observer: Alexandru Deaconu (ROU)
Slovan Bratislava – HSK Zrinjski
Referee: Jeremie Pignard (FRA)
Assistant Referee 1: Aurelien Drouet (FRA)
Assistant Referee 2: Laurent Coniglio (FRA)
Fourth Official: Bastien Dechepy (FRA)
VAR: Pierre Gaillouste (FRA)
AVAR: Eric Wattellier (FRA)
Referee Observer: Konrad Plautz (AUT)
Astana FK – GNK Dinamo
Referee: Dennis Higler (NED)
Assistant Referee 1: Rogier Honig (NED)
Assistant Referee 2: Roy de Nas (NED)
Fourth Official: Joey Kooij (NED)
VAR: Jochem Kamphuis (NED)
AVAR: Edwin van de Graaf (NED)
Referee Observer: Michael Ross (NIR)
Qarabag FK – Rakow Czestochowa
Referee: Sven Jablonski (GER)
Assistant Referee 1: Lasse Koslowski (GER)
Assistant Referee 2: Eduard Beitinger (GER)
Fourth Official: Tobias Reichel (GER)
VAR: Harm Osmers (GER)
AVAR: Mark Borsch (GER)
Referee Observer: Rune Pedersen (NOR)
BK Häcken – KI Klaksvik
Referee: Andrew Madley (ENG)
Assistant Referee 1: Daniel Cook (ENG)
Assistant Referee 2: Daniel Robathan (ENG)
Fourth Official: Michael Salisbury (ENG)
VAR: David Coote (ENG)
AVAR: Craig Pawson (ENG)
Referee Observer: Bertrand Layec (FRA)
Molde FK – HJK Helsinki
Referee: Igor Pajač (CRO)
Assistant Referee 1: Ivan Mihalj (CRO)
Assistant Referee 2: Vedran Djurak (CRO)
Fourth Official: Mateo Erceg (CRO)
VAR: Ivan Bebek (CRO)
AVAR: Ante Čuljak (CRO)
Referee Observer: Matteo Trefoloni (ITA)
Maccabi Haifa – Sheriff Tiraspol
Referee: Damian Sylwestrzak (POL)
Assistant Referee 1: Bartosz Heinig (POL)
Assistant Referee 2: Adam Karasewicz (POL)
Fourth Official: Pawel Malec (POL)
VAR: Piotr Lasyk (POL)
AVAR: Krzysztof Myrmus (POL)
Referee Observer: Stefano Podeschi (SMR)
KRC Genk – Servette FC
Referee: Novak Simović (SRB)
Assistant Referee 1: Nikola Djorović (SRB)
Assistant Referee 2: Miloš Simović (SRB)
Fourth Official: Dejan Trifković (SRB)
VAR: Momčilo Marković (SRB)
AVAR: Aleksandar Živković (SRB)
Referee Observer: Thomas Einwaller (AUT)
FC Copenhagen – Breidablik
Referee: Fabio Maresca (ITA)
Assistant Referee 1: Daniele Bindoni (ITA)
Assistant Referee 2: Christian Rossi (ITA)
Fourth Official: Antonio Rapuano (ITA)
VAR: Luca Pairetto (ITA)
AVAR: Marco Piccinini (ITA)
Referee Observer: Sokol Jareci (ALB)
Galatasaray – Zalgiris Vilnius
Referee: Willy Delajod (FRA)
Assistant Referee 1: Erwan Finjean (FRA)
Assistant Referee 2: Cyril Mugnier (FRA)
Fourth Official: Thomas Leonard (FRA)
VAR: Jerôme Brisard (FRA)
AVAR: Maika Vanderstichel (FRA)
Referee Observer: Rien Koopman (NED)