6-7 February 2018Inter – Spartak Moskva
Referee: Nicolas Rainville (FRA, photo)
Assistant Referee 1: Benjamin Pages (FRA)
Assistant Referee 2: Philippe Jeanne (FRA)
Fourth Official: Lorenzo Illuzzi (ITA)
Referee Observer: Stefano Podeschi (SMR)
Nitra – Feyenoord
Referee: Petr Ardeleánu (CZE)
Assistant Referee 1: Kamil Hájek (CZE)
Assistant Referee 2: Jiří Kříž (CZE)
Fourth Official: Boris Marhefka (SVK)
Referee Observer: Ladislav Gadosi (SVK)
Ajax FC – Paris St. Germain
Referee: Craig Pawson (ENG)
Assistant Referee 1: Constantine Hatzidakis (ENG)
Assistant Referee 2: Edward Smart (ENG)
Fourth Official: Kamphuis Jochem (NED)
Referee Observer: Johannes Reijgwart (NED)
Željezničar – Atlético Madrid
Referee: Mete Kalkavan (TUR)
Assistant Referee 1: Ibrahim Uyarcan (TUR)
Assistant Referee 2: Abdullah Özkara (TUR)
Fourth Official: Haris Kaljanac (BIH)
Referee Observer: Elmir Pilav (BIH)
FC Krasnodar – Real Madrid
Referee: Thorvaldur Árnason (ISL)
Assistant Referee 1: Jóhann Gudmundsson (ISL)
Assistant Referee 2: Andri Vigfússon (ISL)
Fourth Official: Anastasia Pustovoitova (RUS)
Referee Observer: Sergey Zuev (RUS)
FC Salzburg – Sporting CP
Referee: Bojan Pandžić (SWE)
Assistant Referee 1: Stefan Hallberg (SWE)
Assistant Referee 2: Joakim Nilsson (SWE)
Fourth Official: Sebastian Gishamer (AUT)
Referee Observer: Thomas Einwaller (AUT)
Molde FK – AS Monaco
Referee: Kristo Tohver (EST)
Assistant Referee 1: Silver Koiv (EST)
Assistant Referee 2: Jaan Roos (EST)
Fourth Official: Mads Skarsem (NOR)
Referee Observer: Martin Ingvarsson (SWE)
FK Brodarac – Manchester United
Referee: Alexander Harkam (AUT)
Assistant Referee 1: Andreas Staudinger (AUT)
Assistant Referee 2: Markus Gutschi (AUT)
Fourth Official: Andrija Stojanović (SRB)
Referee Observer: Milan Karadžić (SRB)