Dinamo Zagreb – Qarabag Agdam
Referee: Glenn Nyberg SWE (photo)
Assistant Referee 1: Mahbod Beigi SWE
Assistant Referee 2: Andreas Söderkvist SWE
Fourth Official: Adam Ladebäck SWE
VAR: Bastian Dankert GER
AVAR: Johann Pfeifer GER
Referee Observer: Michael Riley ENG
LOSC Lille – Slavia Praha
Referee: Szymon Marciniak POL
Assistant Referee 1: Radosław Siejka POL
Assistant Referee 2: Adam Kupsik POL
Fourth Official: Paweł Raczkowski POL
VAR: Tomasz Kwiatkowski POL
AVAR: Pawel Malec POL
Referee Observer: Thomas Einwaller AUT
Bodo Glimt – Crvena Zvezda
Referee: Ivan Kružliak SVK
Assistant Referee 1: Branislav Hancko SVK
Assistant Referee 2: Jan Pozor SVK
Fourth Official: Peter Kralović SVK
VAR: Pol van Boekel NED
AVAR: Jochem Kamphuis NED
Referee Observer: Lucílio Batista POR
FC Midtjylland – Slovan Bratislava
Referee: Alejandro Hernández Hernández ESP
Assistant Referee 1: José Naranjo Perez ESP
Assistant Referee 2: Diego Sánchez Rojo ESP
Fourth Official: José Munuera Montero ESP
VAR: Carlos Del Cerro Grande ESP
AVAR: Alejandro Muñiz Ruiz ESP
Referee Observer: Pascal Garibian FRA
Malmö FF – Sparta Praha
Referee: Jesús Gil Manzano ESP
Assistant Referee 1: Diego Barbero Sevilla ESP
Assistant Referee 2: Ángel Nevado Rodriguez ESP
Fourth Official: Guillermo Cuadra Fernandez ESP
VAR: Juan Martínez Munuera ESP
AVAR: Valentín Pizzaro Gómez ESP
Referee Observer: Haim Jakov ISR
Dynamo Kyiv – FC Salzburg
Referee: Sandro Schärer SUI
Assistant Referee 1: Jonas Erni SUI
Assistant Referee 2: Susanne Küng SUI
Fourth Official: Lionel Tschudi SUI
VAR: Fedayi San SUI
AVAR: Johannes von Mandach SUI
Referee Observer: Howard Webb ENG
BSC Young Boys – Galatasaray SK
Referee: Daniel Siebert GER
Assistant Referee 1: Jan Seidel GER
Assistant Referee 2: Rafael Foltyn GER
Fourth Official: Daniel Schlager GER
VAR: Christian Dingert GER
AVAR: Benjamin Cortus GER
Referee Observer: Sokol Jareci ALB
Referee: Szymon Marciniak POL
Assistant Referee 1: Radosław Siejka POL
Assistant Referee 2: Adam Kupsik POL
Fourth Official: Paweł Raczkowski POL
VAR: Tomasz Kwiatkowski POL
AVAR: Pawel Malec POL
Referee Observer: Thomas Einwaller AUT
Bodo Glimt – Crvena Zvezda
Referee: Ivan Kružliak SVK
Assistant Referee 1: Branislav Hancko SVK
Assistant Referee 2: Jan Pozor SVK
Fourth Official: Peter Kralović SVK
VAR: Pol van Boekel NED
AVAR: Jochem Kamphuis NED
Referee Observer: Lucílio Batista POR
FC Midtjylland – Slovan Bratislava
Referee: Alejandro Hernández Hernández ESP
Assistant Referee 1: José Naranjo Perez ESP
Assistant Referee 2: Diego Sánchez Rojo ESP
Fourth Official: José Munuera Montero ESP
VAR: Carlos Del Cerro Grande ESP
AVAR: Alejandro Muñiz Ruiz ESP
Referee Observer: Pascal Garibian FRA
Malmö FF – Sparta Praha
Referee: Jesús Gil Manzano ESP
Assistant Referee 1: Diego Barbero Sevilla ESP
Assistant Referee 2: Ángel Nevado Rodriguez ESP
Fourth Official: Guillermo Cuadra Fernandez ESP
VAR: Juan Martínez Munuera ESP
AVAR: Valentín Pizzaro Gómez ESP
Referee Observer: Haim Jakov ISR
Dynamo Kyiv – FC Salzburg
Referee: Sandro Schärer SUI
Assistant Referee 1: Jonas Erni SUI
Assistant Referee 2: Susanne Küng SUI
Fourth Official: Lionel Tschudi SUI
VAR: Fedayi San SUI
AVAR: Johannes von Mandach SUI
Referee Observer: Howard Webb ENG
BSC Young Boys – Galatasaray SK
Referee: Daniel Siebert GER
Assistant Referee 1: Jan Seidel GER
Assistant Referee 2: Rafael Foltyn GER
Fourth Official: Daniel Schlager GER
VAR: Christian Dingert GER
AVAR: Benjamin Cortus GER
Referee Observer: Sokol Jareci ALB