FC Barcelona – Olympiacos SFP
Referee: Urs Schnyder SUI (photo)
Assistant Referee 1: Marco Zürcher SUI
Assistant Referee 2: Benjamin Zürcher SUI
Fourth Official: Lukas Fähndrich SUI
VAR: Fedayi San SUI
AVAR: Ivan Bebek CRO
Referee Observer: Roberto Rosetti ITA
Qairat FK – Pafos FC
Referee: Christopher Kavanagh ENG
Assistant Referee 1: Daniel Cook ENG
Assistant Referee 2: Ian Hussin ENG
Fourth Official: Samuel Barrott ENG
VAR: Stuart Attwell ENG
AVAR: Peter Bankes ENG
Referee Observer: Konrad Plautz AUT
Arsenal FC – Atletico de Madrid
Referee: Davide Massa ITA
Assistant Referee 1: Filippo Meli ITA
Assistant Referee 2: Stefano Alassio ITA
Fourth Official: Matteo Marcenaro ITA
VAR: Daniele Chiffi ITA
AVAR: Jérôme Brisard FRA
Referee Observer: Nuno Castro POR
Bayer Leverkusen – Paris St. Germain
Referee: Jesús Gil Manzano ESP
Assistant Referee 1: Ángel Nevado Rodríguez ESP
Assistant Referee 2: Guadalupe Porras Ayuso ESP
Fourth Official: Alejandro Muñiz Ruiz ESP
VAR: Carlos Del Cerro Grande ESP
AVAR: Jarred Gillett ENG
Referee Observer: Alain Hamer LUX
Villarreal CF – Manchester City FC
Referee: Serdar Gözübüyuk NED
Assistant Referee 1: Erwin Zeinstra NED
Assistant Referee 2: Patrick Inia NED
Fourth Official: Jeroen Manschot NED
VAR: Rob Dieperink NED
AVAR: Bram Van Driessche BEL
Referee Observer: Kóstas Kapitanís CYP
PSV Eindhoven – SSC Napoli
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: Bastian Dankert GER
Referee Observer: Carlos Clos Gómez ESP
FC Copenhagen – Borussia Dortmund
Referee: Danny Makkelie NED
Assistant Referee 1: Hessel Steegstra NED
Assistant Referee 2: Jan de Vries NED
Fourth Official: Allard Lindhout NED
VAR: Pol van Boekel NED
AVAR: Tiago Martins POR
Referee Observer: Rune Pedersen NOR
Union St. Gilloise – Inter Milano
Referee: Glenn Nyberg SWE
Assistant Referee 1: Mahbod Beigi SWE
Assistant Referee 2: Andreas Söderkvist SWE
Fourth Official: Adam Ladebäck SWE
VAR: Guillermo Cuadra Fernández ESP
AVAR: Javier Iglesias Villanueva ESP
Referee Observer: Kyros Vassáras GRE
Newcastle United – SL Benfica
Referee: Szymon Marciniak POL
Assistant Referee 1: Tomasz Listkiewicz POL
Assistant Referee 2: Adam Kupsik POL
Fourth Official: Pawel Raczkowski POL
VAR: Tomasz Kwiatkowski POL
AVAR: César Soto Grado ESP
Referee Observer: Terje Hauge NOR
Referee: Urs Schnyder SUI (photo)
Assistant Referee 1: Marco Zürcher SUI
Assistant Referee 2: Benjamin Zürcher SUI
Fourth Official: Lukas Fähndrich SUI
VAR: Fedayi San SUI
AVAR: Ivan Bebek CRO
Referee Observer: Roberto Rosetti ITA
Qairat FK – Pafos FC
Referee: Christopher Kavanagh ENG
Assistant Referee 1: Daniel Cook ENG
Assistant Referee 2: Ian Hussin ENG
Fourth Official: Samuel Barrott ENG
VAR: Stuart Attwell ENG
AVAR: Peter Bankes ENG
Referee Observer: Konrad Plautz AUT
Arsenal FC – Atletico de Madrid
Referee: Davide Massa ITA
Assistant Referee 1: Filippo Meli ITA
Assistant Referee 2: Stefano Alassio ITA
Fourth Official: Matteo Marcenaro ITA
VAR: Daniele Chiffi ITA
AVAR: Jérôme Brisard FRA
Referee Observer: Nuno Castro POR
Bayer Leverkusen – Paris St. Germain
Referee: Jesús Gil Manzano ESP
Assistant Referee 1: Ángel Nevado Rodríguez ESP
Assistant Referee 2: Guadalupe Porras Ayuso ESP
Fourth Official: Alejandro Muñiz Ruiz ESP
VAR: Carlos Del Cerro Grande ESP
AVAR: Jarred Gillett ENG
Referee Observer: Alain Hamer LUX
Villarreal CF – Manchester City FC
Referee: Serdar Gözübüyuk NED
Assistant Referee 1: Erwin Zeinstra NED
Assistant Referee 2: Patrick Inia NED
Fourth Official: Jeroen Manschot NED
VAR: Rob Dieperink NED
AVAR: Bram Van Driessche BEL
Referee Observer: Kóstas Kapitanís CYP
PSV Eindhoven – SSC Napoli
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: Bastian Dankert GER
Referee Observer: Carlos Clos Gómez ESP
FC Copenhagen – Borussia Dortmund
Referee: Danny Makkelie NED
Assistant Referee 1: Hessel Steegstra NED
Assistant Referee 2: Jan de Vries NED
Fourth Official: Allard Lindhout NED
VAR: Pol van Boekel NED
AVAR: Tiago Martins POR
Referee Observer: Rune Pedersen NOR
Union St. Gilloise – Inter Milano
Referee: Glenn Nyberg SWE
Assistant Referee 1: Mahbod Beigi SWE
Assistant Referee 2: Andreas Söderkvist SWE
Fourth Official: Adam Ladebäck SWE
VAR: Guillermo Cuadra Fernández ESP
AVAR: Javier Iglesias Villanueva ESP
Referee Observer: Kyros Vassáras GRE
Newcastle United – SL Benfica
Referee: Szymon Marciniak POL
Assistant Referee 1: Tomasz Listkiewicz POL
Assistant Referee 2: Adam Kupsik POL
Fourth Official: Pawel Raczkowski POL
VAR: Tomasz Kwiatkowski POL
AVAR: César Soto Grado ESP
Referee Observer: Terje Hauge NOR
