13-14 March 2018FC Barcelona – Atletico de Madrid
Referee: Robert Madley (ENG, photo)
Assistant Referee 1: Harry Lennard (ENG)
Assistant Referee 2: Ian Hussin (ENG)
Fourth Official: David Medie Jimenez (ESP)
Referee Observer: Bernardino Gonzalez (ESP)
Tottenham Hotspur – FC Porto
Referee: Georgi Kabakov (BUL)
Assistant Referee 1: Diyan Valkov (BUL)
Assistant Referee 2: Martin Margaritov (BUL)
Fourth Official: John Brooks (ENG)
Referee Observer: Gerard Perry (IRL)
Manchester City – Liverpool FC
Referee: Davide Massa (ITA)
Assistant Referee 1: Stefano Alassio (ITA)
Assistant Referee 2: Alessandro Lo Cicero (ITA)
Fourth Official: Tom Nield (ENG)
Referee Observer: William Young (SCO)
Real Madrid – Chelsea FC
Referee: Daniel Siebert (GER)
Assistant Referee 1: Markus Häcker (GER)
Assistant Referee 2: Lasse Koslowski (GER)
Fourth Official: Valentín Pizarro Gómez (ESP)
Referee Observer: Nuno Castro (POR)