Legia Warszawa – Rangers FC
Referee: Benoît Bastien (FRA, photo)
Assistant Referee 1: Frédéric Haquette (FRA)
Assistant Referee 2: Cyril Mugnier (FRA)
Fourth Official: Benoît Millot (FRA)
Referee Observer: Stefan Messner (AUT)
FC Astana – Bate Barysaŭ
Referee: Serhiy Boyko (UKR)
Assistant Referee 1: Semen Shlonchak (UKR)
Assistant Referee 2: Oleksandr Korniyko (UKR)
Fourth Official: Anatoliy Abdula (UKR)
Referee Observer: Iain Robertson Brines (SCO)
Ararat Armenia – F91 Dudelange
Referee: Harald Lechner (AUT)
Assistant Referee 1: Andreas Heidenreich (AUT)
Assistant Referee 2: Maximilian Kolbitsch (AUT)
Fourth Official: Julian Weinberger (AUT)
Referee Observer: Boško Jovanetić (SRB)
Malmö FF – Bnei Yehuda Tel Aviv
Referee: Paweł Raczkowski (POL)
Assistant Referee 1: Michał Obukowicz (POL)
Assistant Referee 2: Radosław Siejka (POL)
Fourth Official: Krzysztof Jakubik (POL)
Referee Observer: Vladimir Antonov (MDA)
FK Suduva – Ferencvárosi TC
Referee: Manuel Schüttengruber (AUT)
Assistant Referee 1: Roland Brandner (AUT)
Assistant Referee 2: Robert Steinacher (AUT)
Fourth Official: Sebastian Gishamer (AUT)
Referee Observer: Kóstas Kapitanís (CYP)
Feyenoord – Hapoel Beer Sheva
Referee: Andris Treimanis (LVA)
Assistant Referee 1: Haralds Gudermanis (LVA)
Assistant Referee 2: Aleksejs Spasjonņikovs (LVA)
Fourth Official: Aleksandrs Golubevs (LVA)
Referee Observer: Darko Čeferin (SVN)
PFC Ludogorets – NK Maribor
Referee: Jakob Kehlet (DEN)
Assistant Referee 1: Lars Hummelgaard (DEN)
Assistant Referee 2: Heine Sørensen (DEN)
Fourth Official: Jens Maae (DEN)
Referee Observer: Alexandru Deaconu (ROU)
FC København – Riga FC
Referee: Bas Nijhuis (NED)
Assistant Referee 1: Bas van Dongen (NED)
Assistant Referee 2: Joost van Zuilen (NED)
Fourth Official: Siemen Mulder (NED)
Referee Observer: Volodimir Petrov (UKR)
AEK Athens – Trabzonspor
Referee: Daniel Siebert (GER)
Assistant Referee 1: Rafael Foltyn (GER)
Assistant Referee 2: Jan Seidel (GER)
Fourth Official: Sören Storks (GER)
Referee Observer: Frank De Bleeckere (BEL)
FCSB – Vitoria SC
Referee: Matej Jug (SVN)
Assistant Referee 1: Matej Žunič (SVN)
Assistant Referee 2: Grega Kordež (SVN)
Fourth Official: Nejc Kajtazovič (SVN)
Referee Observer: Juan Fernández Marín (ESP)
PSV Eindhoven – Apollon Limassol
Referee: Aliaksiej Kuĺbakoŭ (BLR)
Assistant Referee 1: Dzmitry Žuk (BLR)
Assistant Referee 2: Jury Chomčanka (BLR)
Fourth Official: Viktar Šymusik (BLR)
Referee Observer: Vítor Melo Pereira (POR)
KAA Gent – HNK Rijeka
Referee: Daniel Stefański (POL)
Assistant Referee 1: Marcin Boniek (POL)
Assistant Referee 2: Dawid Golis (POL)
Fourth Official: Damian Sylwestrzak (POL)
Referee Observer: Yuri Baskakov (RUS)
Strasbourg Alsace – Eintracht Frankfurt
Referee: Ivan Kružliak (SVK)
Assistant Referee 1: Tomáš Somoláni (SVK)
Assistant Referee 2: Branislav Hancko (SVK)
Fourth Official: Filip Glova (SVK)
Referee Observer: Haim Jakov (ISR)
AZ Alkmaar – Royal Antwerp
Referee: Srdjan Jovanović (SRB)
Assistant Referee 1: Uroš Stojković (SRB)
Assistant Referee 2: Milan Mihajlović (SRB)
Fourth Official: Novak Simović (SRB)
Referee Observer: Martin Ingvarsson (SWE)
SC Braga – Spartak Moskva
Referee: Xavier Estrada Fernández (ESP)
Assistant Referee 1: Íñigo Prieto López (ESP)
Assistant Referee 2: José Naranjo Pérez (ESP)
Fourth Official: Pablo González Fuertes (ESP)
Referee Observer: Michaíl Koukoulákis (GRE)
Celtic FC – AIK Stockholm
Referee: Tamás Bognár (HUN)
Assistant Referee 1: Balázs Buzás (HUN)
Assistant Referee 2: Péter Kóbor (HUN)
Fourth Official: Péter Solymosi (HUN)
Referee Observer: Vladimír Medved (SVK)
Linfield FC – Qarabağ FK
Referee: Sandro Schärer (SUI)
Assistant Referee 1: Stéphane De Almeida (SUI)
Assistant Referee 2: Bekim Zogaj (SUI)
Fourth Official: Fedayi San (SUI)
Referee Observer: Vlado Svilokos (CRO)
Torino FC – Wolverhampton Wanderers
Referee: Artur Soares Dias (POR)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Paulo Santos (POR)
Fourth Official: João Pinheiro (POR)
Referee Observer: Bernardino González Vázquez (ESP)
Espanyol de Barcelona – Zorya Luhansk
Referee: Tobias Stieler (GER)
Assistant Referee 1: Mike Pickel (GER)
Assistant Referee 2: Christian Gittelmann (GER)
Fourth Official: Harm Osmers (GER)
Referee Observer: Leslie Irvine (NIR)
FK Partizan – Molde FK
Referee: Viktor Kassai (HUN)
Assistant Referee 1: György Ring (HUN)
Assistant Referee 2: Vencel Tóth (HUN)
Fourth Official: Ádám Farkas (HUN)
Referee Observer: Michael Ross (NIR)
Slovan Bratislava – PAOK FC
Referee: Ivan Bebek (CRO)
Assistant Referee 1: Goran Pataki (CRO)
Assistant Referee 2: Bojan Zobenica (CRO)
Fourth Official: Igor Pajač (CRO)
Referee Observer: Sándor Piller (HUN)
Referee: Tobias Stieler (GER)
Assistant Referee 1: Mike Pickel (GER)
Assistant Referee 2: Christian Gittelmann (GER)
Fourth Official: Harm Osmers (GER)
Referee Observer: Leslie Irvine (NIR)
FK Partizan – Molde FK
Referee: Viktor Kassai (HUN)
Assistant Referee 1: György Ring (HUN)
Assistant Referee 2: Vencel Tóth (HUN)
Fourth Official: Ádám Farkas (HUN)
Referee Observer: Michael Ross (NIR)
Slovan Bratislava – PAOK FC
Referee: Ivan Bebek (CRO)
Assistant Referee 1: Goran Pataki (CRO)
Assistant Referee 2: Bojan Zobenica (CRO)
Fourth Official: Igor Pajač (CRO)
Referee Observer: Sándor Piller (HUN)