Semi-finals (20 April 2018)
Chelsea – FC Porto
Referee: Srdjan Jovanović (SRB)
Assistant Referee 1: Uroš Stojković (SRB)
Assistant Referee 2: Milan Mihajlović (SRB)
Fourth Official: Fedayi San (SUI)
Referee Observer: Marc Batta (FRA)
Manchester City – FC Barcelona
Referee: Aliyar Aghayev (AZE)
Assistant Referee 1: Zeynal Zeynalov (AZE)
Assistant Referee 2: Akif Amirali (AZE)
Fourth Official: Sandro Schärer (SUI)
Referee Observer: Marc Batta (FRA)
Final (23 April 2018)
Chelsea/FC Porto – Manchester City/FC Barcelona
Referee: Andreas Ekberg (SWE, photo)
Assistant Referee 1: Mehmet Culum (SWE)
Assistant Referee 2: Stefan Hallberg (SWE)
Fourth Official: Kristoffer Karlsson (SWE)
Referee Observer: Marc Batta (FRA)