UEFA Champions League – Group Stage (Matchday 4)

31 October 2017
AS Roma – Chelsea
Referee: Jonas Eriksson (SWE, photo)
Assistant Referee 1: Mathias Klasenius (SWE)
Assistant Referee 2: Daniel Wärnmark (SWE)
Additional AR 1: Stefan Johannesson (SWE)
Additional AR 2: Andreas Ekberg (SWE)
Fourth Official: Mehmet Culum (SWE)
Referee Observer: Eugen Strigel (GER)

Manchester United – SL Benfica

Referee: Gediminas Mažeika (LTU)
Assistant Referee 1: Vytautas Šimkus (LTU)
Assistant Referee 2: Vytenis Kazlauskas (LTU)
Additional AR 1: Donatas Rumšas (LTU)
Additional AR 2: Manfredas Lukjancukas (LTU)
Fourth Official: Dovydas Sužiedėlis (LTU)
Referee Observer: Vladimir Antonov (MDA)

FC Basel – CSKA Moskva
Referee: Milorad Mažić (SRB)
Assistant Referee 1: Milovan Ristić (SRB)
Assistant Referee 2: Dalibor Djurdjević (SRB)
Additional AR 1: Nenad Djokić (SRB)
Additional AR 2: Danilo Grujić (SRB)
Fourth Official: Nemanja Petrović (SRB)
Referee Observer: Ichko Lozev (BUL)

Celtic – Bayern München
Referee: Danny Makkelie (NED)
Assistant Referee 1: Mario Diks (NED)
Assistant Referee 2: Hessel Steegstra (NED)
Additional AR 1: Kevin Blom (NED)
Additional AR 2: Jochem Kamphuis (NED)
Fourth Official: Joost van Zuilen (NED)
Referee Observer: Rune Pedersen (NOR)

Paris SG – Anderlecht
Referee: David Fernández Borbalán (ESP)
Assistant Referee 1: Raúl Cabañero Martínez (ESP)
Assistant Referee 2: Diego Barbero Sevilla (ESP)
Additional AR 1: Javier Estrada Fernández (ESP)
Additional AR 2: Juan Martínez Munuera (ESP)
Fourth Official: Miguel Martínez Munuera (ESP)
Referee Observer: Murat Ilgaz (TUR)

Atlético de Madrid – FK Qarabağ

Referee: Deniz Aytekin (GER)
Assistant Referee 1: Guido Kleve (GER)
Assistant Referee 2: Markus Häcker (GER)
Additional AR 1: Daniel Siebert (GER)
Additional AR 2: Benjamin Brand (GER)
Fourth Official: Eduard Beitinger (GER)
Referee Observer: Vítor Melo Pereira (POR)

Olympiacos – FC Barcelona
Referee: Anthony Taylor (ENG)
Assistant Referee 1: Gary Beswick (ENG)
Assistant Referee 2: Adam Nunn (ENG)
Additional AR 1: Craig Pawson (ENG)
Additional AR 2: Stuart Attwell (ENG)
Fourth Official: Stuart Burt (ENG)
Referee Observer: Vladimir Šajn (SVN)

Sporting – Juventus
Referee: Clément Turpin (FRA)
Assistant Referee 1: Cyril Gringore (FRA)
Assistant Referee 2: Guillaume Debart (FRA)
Additional AR 1: Ruddy Buquet (FRA)
Additional AR 2: Nicolas Rainville (FRA)
Fourth Official: Hicham Zakrani (FRA)
Referee Observer: Alexandru Deaconu (ROU)

1 November 2017
Liverpool – Maribor
Referee: Ivan Kružliak (SVK)
Assistant Referee 1: Martin Balko (SVK)
Assistant Referee 2: Tomaš Somolani (SVK)
Additional AR 1: Peter Kralović (SVK)
Additional AR 2: Filip Glova (SVK)
Fourth Official: Branislav Hancko (SVK)
Referee Observer: Kóstas Kapitanís (CYP)

Sevilla FC – Spartak Moskva 

Referee: Artur Soares Dias (POR)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Paulo Santos (POR)
Additional AR 1: Tiago Martins (POR)
Additional AR 2: João Pinheiro (POR)
Fourth Official: Bruno Rodrigues (POR)
Referee Observer: Neale Barry (ENG)

SSC Napoli – Manchester City

Referee: Felix Brych (GER)
Assistant Referee 1: Mark Borsch (GER)
Assistant Referee 2: Stefan Lupp (GER)
Additional AR 1: Bastian Dankert (GER)
Additional AR 2: Marco Fritz (GER)
Fourth Official: Marco Achmüller (GER)
Referee Observer: Oğuz Sarvan (TUR)

Shakhtar Donetsk – Feyenoord

Referee: Anastasios Sidiropoulos (GRE)
Assistant Referee 1: Polychronis Kostaras (GRE)
Assistant Referee 2: Lazaros Dimitriadis (GRE)
Additional AR 1: Charalambos Kalogeropoulos (GRE)
Additional AR 2: Alexandros Aretopoulos (GRE)
Fourth Official: Damianos Efthimiadis (GRE)
Referee Observer: Robert Sedlacek (AUT)

Beşiktaş – AS Monaco
Referee: Paolo Tagliavento (ITA)
Assistant Referee 1: Alessandro Giallatini (ITA)
Assistant Referee 2: Filippo Meli (ITA)
Additional AR 1: Massimiliano Irrati (ITA)
Additional AR 2: Antonio Damato (ITA)
Fourth Official: Riccardo Di Fiore (ITA)
Referee Observer: Kaj Ostergaard (DEN)

FC Porto – RB Leipzig
Referee: Ovidiu Haţegan (ROU)
Assistant Referee 1: Octavian Șovre (ROU)
Assistant Referee 2: Sebastian Gheorghe (ROU)
Additional AR 1: István Kovács (ROU)
Additional AR 2: Sebastian Colţescu (ROU)
Fourth Official: Radu Ghinguleac (ROU)
Referee Observer: Manuel López Fernández (ESP)

Borussia Dortmund – Apoel
Referee: Matej Jug (SVN)
Assistant Referee 1: Matej Žunič (SVN)
Assistant Referee 2: Manuel Vidali (SVN)
Additional AR 1: Rade Obrenović (SVN)
Additional AR 2: Dejan Balažič (SVN)
Fourth Official: Tomislav Pospeh (SVN)
Referee Observer: Markus Nobs (SUI)

Tottenham Hotspur – Real Madrid
Referee: Cüneyt Çakır (TUR)
Assistant Referee 1: Bahattin Duran (TUR)
Assistant Referee 2: Tarik Ongun (TUR)
Additional AR 1: Hüseyin Göçek (TUR)
Additional AR 2: Barış Şimşek (TUR)
Fourth Official: Mustafa Eyisoy (TUR)
Referee Observer: Charles Agius (MLT)