Manchester United – AC Milan
Referee: Slavko Vinčić (SVN, photo)
Assistant Referee 1: Tomaž Klančnik (SVN)
Assistant Referee 2: Andraž Kovačič (SVN)
Fourth Official: Matej Jug (SVN)
VAR: Bastian Dankert (GER)
AVAR: Jure Praprotnik (SVN)
Referee Observer: Alexandru Deaconu (ROU)
Slavia Praha – Rangers FC
Referee: Ovidiu Hategan (ROU)
Assistant Referee 1: Vasile Marinescu (ROU)
Assistant Referee 2: Sebastian Gheorghe (ROU)
Fourth Official: Istvan Kovacs (ROU)
VAR: Marco Di Bello (ITA)
AVAR: Paolo Valeri (ITA)
Referee Observer: Jan Wegereef (NED)
Dynamo Kyiv – Villarreal CF
Referee: Michael Oliver (ENG)
Assistant Referee 1: Stuart Burt (ENG)
Assistant Referee 2: Simon Bennett (ENG)
Fourth Official: Peter Bankes (ENG)
VAR: Christopher Kavanagh (ENG)
AVAR: Craig Pawson (ENG)
Referee Observer: Jouni Hyytia (FIN)
AFC Ajax – BSC Young Boys
Referee: Marco Guida (ITA)
Assistant Referee 1: Ciro Carbone (ITA)
Assistant Referee 2: Giorgio Peretti (ITA)
Fourth Official: Fabio Maresca (ITA)
VAR: Massimiliano Irrati (ITA)
AVAR: Maurizio Mariani (ITA)
Referee Observer: Costas Kapitanis (CYP)
Granada CF – Molde FK
Referee: Pawel Raczkowski (POL)
Assistant Referee 1: Radoslaw Siejka (POL)
Assistant Referee 2: Adam Kupsik (POL)
Fourth Official: Bartosz Frankowski (POL)
VAR: Pawel Gil (POL)
AVAR: Tomasz Kwiatkowski (POL)
Referee Observer: Emil Bozhinovski (MKD)
Tottenham Hotspur – GNK Dinamo
Referee: Serdar Gözübüyük (NED)
Assistant Referee 1: Joost van Zuilen (NED)
Assistant Referee 2: Johan Balder (NED)
Fourth Official: Bas Nijhuis (NED)
VAR: Pol van Boekel (NED)
AVAR: Dennis Higler (NED)
Referee Observer: Mikalis Koukoulakis (GRE)
Olympiacos – Arsenal
Referee: Daniel Siebert (GER)
Assistant Referee 1: Jan Seidel (GER)
Assistant Referee 2: Rafael Foltyn (GER)
Fourth Official: Christian Dingert (GER)
VAR: Marco Fritz (GER)
AVAR: Sascha Stegemann (GER)
Referee Observer: Karen Nalbandyan (ARM)
AS Roma – Shakhtar Donetsk
Referee: Artur Soares Dias (POR)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Paulo Soares (POR)
Fourth Official: Tiago Martins (POR)
VAR: Joao Pinheiro (POR)
AVAR: Luis Godinho (POR)
Referee Observer: Cyril Zimmermann (SUI)
Referee: Slavko Vinčić (SVN, photo)
Assistant Referee 1: Tomaž Klančnik (SVN)
Assistant Referee 2: Andraž Kovačič (SVN)
Fourth Official: Matej Jug (SVN)
VAR: Bastian Dankert (GER)
AVAR: Jure Praprotnik (SVN)
Referee Observer: Alexandru Deaconu (ROU)
Slavia Praha – Rangers FC
Referee: Ovidiu Hategan (ROU)
Assistant Referee 1: Vasile Marinescu (ROU)
Assistant Referee 2: Sebastian Gheorghe (ROU)
Fourth Official: Istvan Kovacs (ROU)
VAR: Marco Di Bello (ITA)
AVAR: Paolo Valeri (ITA)
Referee Observer: Jan Wegereef (NED)
Dynamo Kyiv – Villarreal CF
Referee: Michael Oliver (ENG)
Assistant Referee 1: Stuart Burt (ENG)
Assistant Referee 2: Simon Bennett (ENG)
Fourth Official: Peter Bankes (ENG)
VAR: Christopher Kavanagh (ENG)
AVAR: Craig Pawson (ENG)
Referee Observer: Jouni Hyytia (FIN)
AFC Ajax – BSC Young Boys
Referee: Marco Guida (ITA)
Assistant Referee 1: Ciro Carbone (ITA)
Assistant Referee 2: Giorgio Peretti (ITA)
Fourth Official: Fabio Maresca (ITA)
VAR: Massimiliano Irrati (ITA)
AVAR: Maurizio Mariani (ITA)
Referee Observer: Costas Kapitanis (CYP)
Granada CF – Molde FK
Referee: Pawel Raczkowski (POL)
Assistant Referee 1: Radoslaw Siejka (POL)
Assistant Referee 2: Adam Kupsik (POL)
Fourth Official: Bartosz Frankowski (POL)
VAR: Pawel Gil (POL)
AVAR: Tomasz Kwiatkowski (POL)
Referee Observer: Emil Bozhinovski (MKD)
Tottenham Hotspur – GNK Dinamo
Referee: Serdar Gözübüyük (NED)
Assistant Referee 1: Joost van Zuilen (NED)
Assistant Referee 2: Johan Balder (NED)
Fourth Official: Bas Nijhuis (NED)
VAR: Pol van Boekel (NED)
AVAR: Dennis Higler (NED)
Referee Observer: Mikalis Koukoulakis (GRE)
Olympiacos – Arsenal
Referee: Daniel Siebert (GER)
Assistant Referee 1: Jan Seidel (GER)
Assistant Referee 2: Rafael Foltyn (GER)
Fourth Official: Christian Dingert (GER)
VAR: Marco Fritz (GER)
AVAR: Sascha Stegemann (GER)
Referee Observer: Karen Nalbandyan (ARM)
AS Roma – Shakhtar Donetsk
Referee: Artur Soares Dias (POR)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Paulo Soares (POR)
Fourth Official: Tiago Martins (POR)
VAR: Joao Pinheiro (POR)
AVAR: Luis Godinho (POR)
Referee Observer: Cyril Zimmermann (SUI)
