31 October 2017
FC Basel – CSKA Moskva
Referee: Laurent Kopriwa (LUX, photo)
Assistant Referee 1: David Santos (LUX)
Assistant Referee 2: Joaquim Da Silva (LUX)
Fourth Official: Alessandro Dudic (LUX)
Referee Observer: Cyril Zimmermann (SUI)
AS Roma – Chelsea
Referee: Srdjan Jovanović (SRB)
Assistant Referee 1: Uroš Stojković (SRB)
Assistant Referee 2: Milan Mihajlović (SRB)
Fourth Official: Livio Marinelli (ITA)
Referee Observer: Alfredo Trentalange (ITA)
Manchester United – Benfica
Referee: Mads-Kristoffer Kristoffersen (DEN)
Assistant Referee 1: Dennis Rasmussen (DEN)
Assistant Referee 2: Victor Skytte (DEN)
Fourth Official: Anthony Backhouse (ENG)
Referee Observer: Stephen Lodge (ENG)
Paris SG – Anderlecht
Referee: Irfan Peljto (BIH)
Assistant Referee 1: Senad Ibrišimbegović (BIH)
Assistant Referee 2: Davor Beljo (BIH)
Fourth Official: Bastien Dechepy (FRA)
Referee Observer: Bertrand Layec (FRA)
Celtic – Bayern München
Referee: Ola Hobber Nilsen (NOR)
Assistant Referee 1: Anders Dale (NOR)
Assistant Referee 2: Isaak Skjeseth (NOR)
Fourth Official: Barry Cook (SCO)
Referee Observer: William Young (Scotland)
Atlético de Madrid – Qarabağ FK
Referee: Stephan Klossner (SUI)
Assistant Referee 1: Remy Zgraggen (SUI)
Assistant Referee 2: Efe Kurnazca (SUI)
Fourth Official: Valentín Pizarro Gómez (ESP)
Referee Observer: Manuel Díaz Vega (ESP)
Sporting – Juventus
Referee: Sandro Schärer (SUI)
Assistant Referee 1: Stéphane De Almeida (SUI)
Assistant Referee 2: Bekim Zogaj (SUI)
Fourth Official: Rui Piteira Rodrigues (POR)
Referee Observer: Edward Foley (IRL)
Olympiakós – FC Barcelona
Referee: Roi Reinshreiber (ISR)
Assistant Referee 1: Matityahu Yakobov (ISR)
Assistant Referee 2: Omer Barbiro (ISR)
Fourth Official: Ioánnis Neofytiádis (GRE)
Referee Observer: Ioánnis Tsachilídis (GRE)
1 November 2017
Liverpool – Maribor
Referee: Andrew Dallas (SCO)
Assistant Referee 1: Paul O'Neill (SCO)
Assistant Referee 2: Daniel McFarlane (SCO)
Fourth Official: Scott Oldham (ENG)
Referee Observer: Gerard Perry (IRL)
Sevilla FC – Spartak Moskva
Referee: Duje Strukan (CRO)
Assistant Referee 1: Goran Perica (CRO)
Assistant Referee 2: Mario Pepur (CRO)
Fourth Official: Jorge Figueroa Vázquez (ESP)
Referee Observer: Juan Fernández Marín (ESP)
Shakhtar Donetsk – Feyenoord
Referee: Zbyněk Proske (CZE)
Assistant Referee 1: Radek Kotík (CZE)
Assistant Referee 2: Kamil Hájek (CZE)
Fourth Official: Vitaliy Romanov (UKR)
Referee Observer: Vasyl Melnychuk (UKR)
SSC Napoli – Manchester City
Referee: Christian Dingert (GER)
Assistant Referee 1: Tobias Christ (GER)
Assistant Referee 2: Timo Gerach (GER)
Fourth Official: Eugenio Abbattista (ITA)
Referee Observer: Stefano Podeschi (SMR)
Beşiktaş – AS Monaco
Referee: Nikola Popov (BUL)
Assistant Referee 1: Georgi Todorov (BUL)
Assistant Referee 2: Petar Dzhuganski (BUL)
Fourth Official: Oğuzhan Uğurlu (TUR)
Referee Observer: Muharrem Aksoy (TUR)
FC Porto – RB Leipzig
Referee: Robert Madley (ENG)
Assistant Referee 1: Edward Smart (ENG)
Assistant Referee 2: Adrian Holmes (ENG)
Fourth Official: João Borlido (POR)
Referee Observer: António Almeida (POR)
Tottenham Hotspur – Real Madrid
Referee: Peter Kjærsgaard Andersen (DEN)
Assistant Referee 1: Christian Brixen (DEN)
Assistant Referee 2: Daniel Nørgaard (DEN)
Fourth Official: John Brooks (ENG)
Referee Observer: Alan Freeland (SCO)
Borussia Dortmund – Apoel
Referee: Antti Munukka (FIN)
Assistant Referee 1: Jukka Honkanen (FIN)
Assistant Referee 2: Turkka Valjakka (FIN)
Fourth Official: Thorben Siewer (GER)
Referee Observer: Lutz Fröhlich (GER)