RSC Anderlecht – FC Midtjylland
Referee: Danilo Grujić (SRB, photo)
Assistant Referee 1: Goran Božović (SRB)
Assistant Referee 2: Stefan Vojnić (SRB)
Fourth Official: Bert Put (BEL)
Referee Observer: Michel Piraux (BEL)
Qəbələ FK – Dynamo Moskow
Referee: Alper Ulusoy (TUR)
Assistant Referee 1: İbrahim Bozbey (TUR)
Assistant Referee 2: İlker Takpak (TUR)
Fourth Official: Ömər Paşayev (AZE)
Referee Observer: Asim Xudiyev (AZE)
FC Salzburg – FK Vardar
Referee: Fran Jović (CRO)
Assistant Referee 1: Ivica Modrić (CRO)
Assistant Referee 2: Hrvoje Radić (CRO)
Fourth Official: Sebastian Gishamer (AUT)
Referee Observer: Horst Brummeier (AUT)
Sparta Praha – Mladost Podgorica
Referee: Filip Glova (SVK)
Assistant Referee 1: Michal Tomčík (SVK)
Assistant Referee 2: Peter Kováč (SVK)
Fourth Official: Ondrej Berka (CZE)
Referee Observer: Vaclav Krondl (CZE)
Apoel – AS Roma
Referee: Stavros Mantalos (GRE)
Assistant Referee 1: Lazaros Dimitriadis (GRE)
Assistant Referee 2: Panagiotis Messinis (GRE)
Fourth Official: Neophytos Neophytou (CYP)
Referee Observer: Shmuel Shteif (ISR)
Altinordu SK – Levski Sofia
Referee: Dumitru Muntean (MDA)
Assistant Referee 1: Sergiu Beslui (MDA)
Assistant Referee 2: Dumitru Ciobanu (MDA)
Referee Observer: Erol Ersoy (TUR)
Puskás Akadémia – PAOK
Referee: Sergei Ivanov (RUS)
Assistant Referee 1: Aleksei Lebedev (RUS)
Assistant Referee 2: Roman Usachev (RUS)
Fourth Official: Csaba Pintér (HUN)
Referee Observer: Vencel Tóth (HUN)
Viitorul Constanta – Sheriff Tiraspol
Referee: Peter Kralović (SVK)
Assistant Referee 1: Miroslav Benko (SVK)
Assistant Referee 2: Erik Weiss (SVK)
Fourth Official: Claudiu Marcu (ROU)
Referee Observer: Nicolae Grigorescu (ROU)
Rosenborg – AIK
Assistant Referee 1: Ivica Modrić (CRO)
Assistant Referee 2: Hrvoje Radić (CRO)
Fourth Official: Sebastian Gishamer (AUT)
Referee Observer: Horst Brummeier (AUT)
Sparta Praha – Mladost Podgorica
Referee: Filip Glova (SVK)
Assistant Referee 1: Michal Tomčík (SVK)
Assistant Referee 2: Peter Kováč (SVK)
Fourth Official: Ondrej Berka (CZE)
Referee Observer: Vaclav Krondl (CZE)
Apoel – AS Roma
Referee: Stavros Mantalos (GRE)
Assistant Referee 1: Lazaros Dimitriadis (GRE)
Assistant Referee 2: Panagiotis Messinis (GRE)
Fourth Official: Neophytos Neophytou (CYP)
Referee Observer: Shmuel Shteif (ISR)
Altinordu SK – Levski Sofia
Referee: Dumitru Muntean (MDA)
Assistant Referee 1: Sergiu Beslui (MDA)
Assistant Referee 2: Dumitru Ciobanu (MDA)
Referee Observer: Erol Ersoy (TUR)
Puskás Akadémia – PAOK
Referee: Sergei Ivanov (RUS)
Assistant Referee 1: Aleksei Lebedev (RUS)
Assistant Referee 2: Roman Usachev (RUS)
Fourth Official: Csaba Pintér (HUN)
Referee Observer: Vencel Tóth (HUN)
Viitorul Constanta – Sheriff Tiraspol
Referee: Peter Kralović (SVK)
Assistant Referee 1: Miroslav Benko (SVK)
Assistant Referee 2: Erik Weiss (SVK)
Fourth Official: Claudiu Marcu (ROU)
Referee Observer: Nicolae Grigorescu (ROU)
Rosenborg – AIK
Referee: Jari Järvinen (FIN)
Assistant Referee 1: Mike Lamppu (FIN)
Assistant Referee 2: Matti Leppänen (FIN)
Fourth Official: Mads Følstad (NOR)
Referee Observer: Kjell Alseth (NOR)
FC Nitra – Málaga
Referee: Ferenc Karakó (HUN)
Assistant Referee 1: Balázs Szert (HUN)
Assistant Referee 2: Balázs Szalai (HUN)
Fourth Official: Pavol Šuniar (SVK)
Referee Observer: Dušan Krchňák (SVK)
Breidablik Kópavogur – Ajax
Referee: Alex Troleis (FRO)
Assistant Referee 1: Regin Egholm (FRO)
Assistant Referee 2: Jørleif Djurhuus (FRO)
Fourth Official: Helgi Jónasson (ISL)
Referee Observer: Gudmundur Jónsson (ISL)
NK Domžale – FK Čukarički
Referee: Yaroslav Kozyk (UKR)
Assistant Referee 1: Maksym Chos (UKR)
Assistant Referee 2: Valentyn Kutsev (UKR)
Fourth Official: Rade Obrenović (SVN)
Referee Observer: Drago Kos (SVN)
Zrinjski Mostar – FC Zürich
Referee: Mitja Žganec (SVN)
Assistant Referee 1: Grega Kordež (SVN)
Assistant Referee 2: Tomislav Pospeh (SVN)
Fourth Official: Haris Kaljanac (BIH)
Referee Observer: Dragutin Poljak (CRO)
HJK Helsinki – Cork City
Referee: Glenn Nyberg (SWE)
Assistant Referee 1: Peter Magnusson (SWE)
Assistant Referee 2: Björn Lindroth (SWE)
Fourth Official: Petri Viljanen (FIN)
Referee Observer: Jouni Hyytiä (FIN)
Dinamo Tbilisi – Kairat Almaty
Referee: Zaven Hovhannisyan (ARM)
Assistant Referee 1: Mesrop Ghazaryan (ARM)
Assistant Referee 2: Atom Sevgulyan (ARM)
Fourth Official: Giorgi Kruashvili (GEO)
Referee Observer: Murat Ilgaz (TUR)
Maccabi Haifa – Shakhtyor Soligorsk
Referee: Alexandros Aretopoulos (GRE)
Assistant Referee 1: Ilias Alexeas (GRE)
Assistant Referee 2: Efthymios Kourentas (GRE)
Fourth Official: Yigal Frid (ISR)
Referee Observer: Shmuel Shteif (ISR)
Assistant Referee 1: Mike Lamppu (FIN)
Assistant Referee 2: Matti Leppänen (FIN)
Fourth Official: Mads Følstad (NOR)
Referee Observer: Kjell Alseth (NOR)
FC Nitra – Málaga
Referee: Ferenc Karakó (HUN)
Assistant Referee 1: Balázs Szert (HUN)
Assistant Referee 2: Balázs Szalai (HUN)
Fourth Official: Pavol Šuniar (SVK)
Referee Observer: Dušan Krchňák (SVK)
Breidablik Kópavogur – Ajax
Referee: Alex Troleis (FRO)
Assistant Referee 1: Regin Egholm (FRO)
Assistant Referee 2: Jørleif Djurhuus (FRO)
Fourth Official: Helgi Jónasson (ISL)
Referee Observer: Gudmundur Jónsson (ISL)
NK Domžale – FK Čukarički
Referee: Yaroslav Kozyk (UKR)
Assistant Referee 1: Maksym Chos (UKR)
Assistant Referee 2: Valentyn Kutsev (UKR)
Fourth Official: Rade Obrenović (SVN)
Referee Observer: Drago Kos (SVN)
Zrinjski Mostar – FC Zürich
Referee: Mitja Žganec (SVN)
Assistant Referee 1: Grega Kordež (SVN)
Assistant Referee 2: Tomislav Pospeh (SVN)
Fourth Official: Haris Kaljanac (BIH)
Referee Observer: Dragutin Poljak (CRO)
HJK Helsinki – Cork City
Referee: Glenn Nyberg (SWE)
Assistant Referee 1: Peter Magnusson (SWE)
Assistant Referee 2: Björn Lindroth (SWE)
Fourth Official: Petri Viljanen (FIN)
Referee Observer: Jouni Hyytiä (FIN)
Dinamo Tbilisi – Kairat Almaty
Referee: Zaven Hovhannisyan (ARM)
Assistant Referee 1: Mesrop Ghazaryan (ARM)
Assistant Referee 2: Atom Sevgulyan (ARM)
Fourth Official: Giorgi Kruashvili (GEO)
Referee Observer: Murat Ilgaz (TUR)
Maccabi Haifa – Shakhtyor Soligorsk
Referee: Alexandros Aretopoulos (GRE)
Assistant Referee 1: Ilias Alexeas (GRE)
Assistant Referee 2: Efthymios Kourentas (GRE)
Fourth Official: Yigal Frid (ISR)
Referee Observer: Shmuel Shteif (ISR)