Juventus – PSV Eindhoven
Referee: Gustavo Correia POR (photo)
Assistant Referee 1: Tiago Costa POR
Assistant Referee 2: Nélson Pereira POR
Fourth Official: Kevin Bonacina ITA
Sporting CP – LOSC Lille
Referee: Danilo Nikolić SRB
Assistant Referee 1: Miloš Mitić SRB
Assistant Referee 2: Andreja Piljak SRB
Fourth Official: Flávio Lima POR
BSC Young Boys – Aston Villa
Referee: Mohammad Aslam NOR
Assistant Referee 1: Jorgen Valstadsve NOR
Assistant Referee 2: Alf Rossland NOR
Fourth Official: Maxime Odiet SUI
AC Milan – Liverpool FC
Referee: Granit Maqedonci SWE
Assistant Referee 1: Simon Kristensson SWE
Assistant Referee 2: Anton Sjöberg SWE
Fourth Official: Paride Tremolada ITA
Real Madrid – VfB Stuttgart
Referee: Henrik Nalbandyan ARM
Assistant Referee 1: Atom Sevgulyan ARM
Assistant Referee 2: Khachatur Hovhannisyan ARM
Fourth Official: Álvaro Rodríguez Recio ESP
Bayern München – GNK Dinamo
Referee: Dmytro Panchyshyn UKR
Assistant Referee 1: Volodymyr Vysotskyy UKR
Assistant Referee 2: Oleksandr Korniyko UKR
Fourth Official: Michael Bacher GER
Bologna FC – Shakhtar Donetsk
Referee: Peiman Simani FIN
Assistant Referee 1: Christian De Casseres FIN
Assistant Referee 2: Samu Koskinen FIN
Fourth Official: Ermanno Feliciani ITA
Sparta Praha – FC Salzburg
Referee: Martin Matoša SVN
Assistant Referee 1: Tomaž Černe SVN
Assistant Referee 2: Matic Mežnar SVN
Fourth Official: Marek Radina CZE
Paris St. Germain – Girona FC
Referee: Helgi Jónasson ISL
Assistant Referee 1: Egill Gudlaugsson ISL
Assistant Referee 2: Eysteinn Hrafnkelsson ISL
Fourth Official: Aurélien Petit FRA
Celtic FC – Slovan Bratislava
Referee: Jacob Karlsen DEN
Assistant Referee 1: Martin Markus DEN
Assistant Referee 2: Daniel Cortzen DEN
Fourth Official: Lloyd Wilson SCO
Club Brugge – Borussia Dortmund
Referee: Heini Vidoy FRO
Assistant Referee 1: Jorleif Djurhuus FRO
Assistant Referee 2: Jógvan Klakstein FRO
Fourth Official: Matonga Simonini BEL
Manchester City – Inter Milano
Referee: Ishmael Barbara MLT
Assistant Referee 1: James Muscat MLT
Assistant Referee 2: Duncan Spencer MLT
Fourth Official: Benjamin Speedie ENG
Crvena Zvezda – SL Benfica
Referee: Damian Kos POL
Assistant Referee 1: Bartosz Heinig POL
Assistant Referee 2: Marek Arys POL
Fourth Official: Predrag Janjuš SRB
Feyenoord Rotterdam – Bayer Leverkusen
Referee: James Robinson NIR
Assistant Referee 1: Andrew Nethery NIR
Assistant Referee 2: Shane Geary NIR
Fourth Official: Erwin Blank NED
Stade Brestois – Sturm Graz
Referee: Chrístos Vergétis GRE
Assistant Referee 1: Andréas Fotópoulos GRE
Assistant Referee 2: Konstantínos Stáikos GRE
Fourth Official: Pierre Legat FRA
Atalanta BC – Arsenal FC
Referee: Joonas Jaanovits EST
Assistant Referee 1: Aron Härsing EST
Assistant Referee 2: Riivo Stolts EST
Fourth Official: Luca Zufferli ITA
AS Monaco – FC Barcelona
Referee: Bence Csonka HUN
Assistant Referee 1: Balázs Szert HUN
Assistant Referee 2: Norbert Bornemissza HUN
Fourth Official: Faouzi Benchabane FRA
Atletico de Madrid – RB Leipzig
Referee: Ion Orlic MDA
Assistant Referee 1: Ghenadie Lisița MDA
Assistant Referee 2: Victor Luchița MDA
Fourth Official: Alvaro Rodríguez Recio ESP
Referee: Gustavo Correia POR (photo)
Assistant Referee 1: Tiago Costa POR
Assistant Referee 2: Nélson Pereira POR
Fourth Official: Kevin Bonacina ITA
Sporting CP – LOSC Lille
Referee: Danilo Nikolić SRB
Assistant Referee 1: Miloš Mitić SRB
Assistant Referee 2: Andreja Piljak SRB
Fourth Official: Flávio Lima POR
BSC Young Boys – Aston Villa
Referee: Mohammad Aslam NOR
Assistant Referee 1: Jorgen Valstadsve NOR
Assistant Referee 2: Alf Rossland NOR
Fourth Official: Maxime Odiet SUI
AC Milan – Liverpool FC
Referee: Granit Maqedonci SWE
Assistant Referee 1: Simon Kristensson SWE
Assistant Referee 2: Anton Sjöberg SWE
Fourth Official: Paride Tremolada ITA
Real Madrid – VfB Stuttgart
Referee: Henrik Nalbandyan ARM
Assistant Referee 1: Atom Sevgulyan ARM
Assistant Referee 2: Khachatur Hovhannisyan ARM
Fourth Official: Álvaro Rodríguez Recio ESP
Bayern München – GNK Dinamo
Referee: Dmytro Panchyshyn UKR
Assistant Referee 1: Volodymyr Vysotskyy UKR
Assistant Referee 2: Oleksandr Korniyko UKR
Fourth Official: Michael Bacher GER
Bologna FC – Shakhtar Donetsk
Referee: Peiman Simani FIN
Assistant Referee 1: Christian De Casseres FIN
Assistant Referee 2: Samu Koskinen FIN
Fourth Official: Ermanno Feliciani ITA
Sparta Praha – FC Salzburg
Referee: Martin Matoša SVN
Assistant Referee 1: Tomaž Černe SVN
Assistant Referee 2: Matic Mežnar SVN
Fourth Official: Marek Radina CZE
Paris St. Germain – Girona FC
Referee: Helgi Jónasson ISL
Assistant Referee 1: Egill Gudlaugsson ISL
Assistant Referee 2: Eysteinn Hrafnkelsson ISL
Fourth Official: Aurélien Petit FRA
Celtic FC – Slovan Bratislava
Referee: Jacob Karlsen DEN
Assistant Referee 1: Martin Markus DEN
Assistant Referee 2: Daniel Cortzen DEN
Fourth Official: Lloyd Wilson SCO
Club Brugge – Borussia Dortmund
Referee: Heini Vidoy FRO
Assistant Referee 1: Jorleif Djurhuus FRO
Assistant Referee 2: Jógvan Klakstein FRO
Fourth Official: Matonga Simonini BEL
Manchester City – Inter Milano
Referee: Ishmael Barbara MLT
Assistant Referee 1: James Muscat MLT
Assistant Referee 2: Duncan Spencer MLT
Fourth Official: Benjamin Speedie ENG
Crvena Zvezda – SL Benfica
Referee: Damian Kos POL
Assistant Referee 1: Bartosz Heinig POL
Assistant Referee 2: Marek Arys POL
Fourth Official: Predrag Janjuš SRB
Feyenoord Rotterdam – Bayer Leverkusen
Referee: James Robinson NIR
Assistant Referee 1: Andrew Nethery NIR
Assistant Referee 2: Shane Geary NIR
Fourth Official: Erwin Blank NED
Stade Brestois – Sturm Graz
Referee: Chrístos Vergétis GRE
Assistant Referee 1: Andréas Fotópoulos GRE
Assistant Referee 2: Konstantínos Stáikos GRE
Fourth Official: Pierre Legat FRA
Atalanta BC – Arsenal FC
Referee: Joonas Jaanovits EST
Assistant Referee 1: Aron Härsing EST
Assistant Referee 2: Riivo Stolts EST
Fourth Official: Luca Zufferli ITA
AS Monaco – FC Barcelona
Referee: Bence Csonka HUN
Assistant Referee 1: Balázs Szert HUN
Assistant Referee 2: Norbert Bornemissza HUN
Fourth Official: Faouzi Benchabane FRA
Atletico de Madrid – RB Leipzig
Referee: Ion Orlic MDA
Assistant Referee 1: Ghenadie Lisița MDA
Assistant Referee 2: Victor Luchița MDA
Fourth Official: Alvaro Rodríguez Recio ESP