17 October 2017AS Monaco – Beşiktaş
Referee: Alexandre Boucaut (BEL, photo)
Assistant Referee 1: Laurent Conotte (BEL)
Assistant Referee 2: Florian Lemaire (BEL)
Fourth Official: Faouzi Benchabane (FRA)
Referee Observer: Matteo Trefoloni (ITA)
Spartak Moskva – Sevilla FC
Referee: Alper Ulusoy (TUR)
Assistant Referee 1: Abdullah Özkara (TUR)
Assistant Referee 2: Kemal Elmas (TUR)
Fourth Official: Anastasia Pustovoitova (RUS)
Referee Observer: Aleksei Spirin (RUS)
Maribor – Liverpool
Referee: Markus Hameter (AUT)
Assistant Referee 1: Robert Steinacher (AUT)
Assistant Referee 2: Michael Nemetz (AUT)
Fourth Official: Marko Lackovič (SVN)
Referee Observer: Miroslav Vitković (CRO)
Feyenoord – Shakhtar Donetsk
Referee: Timothy Marshall (NIR)
Assistant Referee 1: Paul Robinson (NIR)
Assistant Referee 2: Andrew Nethery (NIR)
Fourth Official: Richard Martens (NED)
Referee Observer: Jan Wegereef (NED)
Manchester City – SSC Napoli
Referee: Bart Vertenten (BEL)
Assistant Referee 1: Rien Vanyzere (BEL)
Assistant Referee 2: Thibaud Nijssen (BEL)
Fourth Official: Tom Nield (ENG)
Referee Observer: Peter Jones (ENG)
RB Leipzig – FC Porto
Referee: Ognjen Valjić (BIH)
Assistant Referee 1: Sreten Udovičić (BIH)
Assistant Referee 2: Amer Macić (BIH)
Fourth Official: Lasse Koslowski (GER)
Referee Observer: Eugen Strigel (GER)
Apoel – Borussia Dortmund
Referee: Eitan Shmuelevitz (ISR)
Assistant Referee 1: Avi Goldstain (ISR)
Assistant Referee 2: Nati Dotan (ISR)
Fourth Official: Timotheos Christofi (CYP)
Referee Observer: Kostas Kapitanis (CYP)
Real Madrid – Tottenham Hotspur
Referee: João Pinheiro (POR)
Assistant Referee 1: Bruno Campos (POR)
Assistant Referee 2: Nuno Fi Pereira (POR)
Fourth Official: Valentín Pizarro Gómez (ESP)
Referee Observer: Manuel Mejuto González (ESP)
18 October 2017
CSKA Moskva – FC Basel
Referee: Filip Glova (SVK)
Assistant Referee 1: František Ferenc (SVK)
Assistant Referee 2: Milan Štrbo (SVK)
Fourth Official: Aleksey Sukhoy (RUS)
Referee Observer: Aleksandr Gvardis (RUS)
SL Benfica – Manchester United
Referee: Juan Martínez Munuera (ESP)
Assistant Referee 1: Diego Barbero Sevilla (ESP)
Assistant Referee 2: César Manuel Noval (ESP)
Fourth Official: Rui Piteira Rodrigues (POR)
Referee Observer: Lucílio Batista (POR)
Bayern München – Celtic
Referee: Ivaylo Stoyanov (BUL)
Assistant Referee 1: Divan Valkov (BUL)
Assistant Referee 2: Milen Arabadzhiev (BUL)
Fourth Official: Florian Badstübner (GER)
Referee Observer: Peter Sippel (GER)
Anderlecht – Paris St. Germain
Referee: Fedayi San (SUI)
Assistant Referee 1: Vital Jobin (SUI)
Assistant Referee 2: Carmine Sangiovanni (SUI)
Fourth Official: Lothar D'Hondt (BEL)
Referee Observer: Frank De Bleeckere (BEL)
Qarabağ FK – Atlético Madrid
Referee: Vitali Meshkov (RUS)
Assistant Referee 1: Aleksei Lunev (RUS)
Assistant Referee 2: Nikolai Bogach (RUS)
Fourth Official: Rauf Cabbarov (AZE)
Referee Observer: Asim Xudiyev (AZE)
Chelsea – AS Roma
Referee: Frank Schneider (FRA)
Assistant Referee 1: Djamel Zitouni (FRA)
Assistant Referee 2: Nicolas Henninot (FRA)
Fourth Official: John Busby (ENG)
Referee Observer: John Ward (IRL)
FC Barcelona – Olympiakós
Referee: Robert Harvey (IRL)
Assistant Referee 1: Darragh Keegan (IRL)
Assistant Referee 2: Shane O'Brien (IRL)
Fourth Official: David Medié Jiménez (ESP)
Referee Observer: Bernardino González Vázquez (ESP)
Juventus – Sporting
Referee: Fran Jović (CRO)
Assistant Referee 1: Ivica Modrić (CRO)
Assistant Referee 2: Hrvoje Radić (CRO)
Fourth Official: Daniele Minelli (ITA)
Referee Observer: Robert Sedlacek (AUT)
