AEK Larnaca – Maccabi Tel Aviv
Referee: Jonathan Lardot (BEL, photo)
Assistant Referee 1: Florian Lemaire (BEL)
Assistant Referee 2: Quentin Blaise (BEL)
Fourth Official: Jasper Vergoote (BEL)
Referee Observer: Georgi Yordanov (BUL)
KAA Gent – Pogon Szczecin
Referee: Vasilios Fotias (GRE)
Assistant Referee 1: Andreas Meindanas (GRE)
Assistant Referee 2: Konstantinos Psarris (GRE)
Fourth Official: Aristotelis Diamantopoulos (GRE)
Referee Observer: Kjell Alseth (NOR)
Tobyl FK – Derry City
Referee: Walter Altmann (AUT)
Assistant Referee 1: Roland Brandner (AUT)
Assistant Referee 2: Robert Steinacher (AUT)
Fourth Official: Christopher Jäger (AUT)
Struga Trim Lum – Swift Hesper
Referee: Jakob Sundberg (DEN)
Assistant Referee 1: Deniz Yurdakul (DEN)
Assistant Referee 2: Daniel Norgaard (DEN)
Fourth Official: Lasse Graagaard (DEN)
Referee Observer: Domagoj Vučkov (CRO)
Sabah – Partizan
Referee: Giorgi Kruashvili (GEO)
Assistant Referee 1: Levan Varamishvili (GEO)
Assistant Referee 2: Zaza Pipia (GEO)
Fourth Official: Aleko Aptsiauri (GEO)
Referee Observer: Lucilio Batista (POR)
Omonia Nicosia – FC Midtjylland
Referee: Sigurd Kringstad (NOR)
Assistant Referee 1: Oystein Ytterland (NOR)
Assistant Referee 2: Runar Langseth (NOR)
Fourth Official: Daniel Higraff (NOR)
Referee Observer: Igor Satchii (MDA)
Valmiera – Partizani
Referee: Joni Hyytiä (FIN)
Assistant Referee 1: Sami Nykänen (FIN)
Assistant Referee 2: Veli-Matti Leppänen (FIN)
Fourth Official: Dennis Antamo (FIN)
Referee Observer: Christopher Lautier (MLT)
Sepsi Sf. Gheorghe – Aqtöbe FK
Referee: Visar Kastrati (KOS)
Assistant Referee 1: Besnik Morina (KOS)
Assistant Referee 2: Lumturije Muhadri (KOS)
Fourth Official: Alban Shala (KOS)
Referee Observer: Michael Johansen (DEN)
Santa Coloma – AZ Alkmaar
Referee: Saiat Qarabaev (KAZ)
Assistant Referee 1: Aleksei Dolgih (KAZ)
Assistant Referee 2: Dmitrii Belogradov (KAZ)
Fourth Official: Aidyn Tasybaev (KAZ)
Referee Observer: Emil Božinovski (MKD)
Neftci PFK – Beşiktaş
Referee: Lukas Fähndrich (SUI)
Assistant Referee 1: Jonas Erni (SUI)
Assistant Referee 2: Guillaume Maire (SUI)
Fourth Official: Lionel Tschudi (SUI)
Referee Observer: Gerard Perry (IRL)
Viktoria Plzen – Gzira United
Referee: Vilhjalmur Thorarinsson (ISL)
Assistant Referee 1: Gylfi Sigurdsson (ISL)
Assistant Referee 2: Birkir Sigurdarson (ISL)
Fourth Official: Helgi Jonasson (ISL)
Referee Observer: Viktor Shvetsov (UKR)
Adana Demirspor – NK Osijek
Referee: Goga Kikacheishvili (GEO)
Assistant Referee 1: Davit Akhvlediani (GEO)
Assistant Referee 2: Davit Gabisonia (GEO)
Fourth Official: Davit Kharitonashvili (GEO)
Referee Observer: Ian Stokes (IRL)
Rosenborg BK – Heart of Midlothian
Referee: Andrei Chivulete (ROU)
Assistant Referee 1: Sebastian Gheorghe (ROU)
Assistant Referee 2: Andrei Constantinescu (ROU)
Fourth Official: Sebastian Coltescu (ROU)
Referee Observer: Kevin Parry (WAL)
Dila Gori – Apoel
Referee: Jasmin Sabotic (LUX)
Assistant Referee 1: Claude Ries (LUX)
Assistant Referee 2: Rafael Morim (LUX)
Fourth Official: Ricardo Morais (LUX)
Referee Observer: Asim Xudiyev (AZE)
Farul Constanta – Flora Tallinn
Referee: Ioannis Papadopoulos (GRE)
Assistant Referee 1: Vasilios Nikolakakis (GRE)
Assistant Referee 2: Konstantinos Nikolaidis (GRE)
Fourth Official: Angelos Evangelou (GRE)
Referee Observer: Rusmir Mrković (BIH)
Hapoel Beer Sheva – PFK Levski
Referee: Miguel Nogueira (POR)
Assistant Referee 1: Luis Campos (POR)
Assistant Referee 2: Rui Teixeira (POR)
Fourth Official: Andre Narciso (POR)
Referee Observer: Ognjen Valjić (BIH)
Hamrun Spartans – Ferencvarosi TC
Referee: Eldorjan Hamiti (ALB)
Assistant Referee 1: Rejdi Avdo (ALB)
Assistant Referee 2: Rejdi Zaimi (ALB)
Fourth Official: Andi Koçi (ALB)
Referee Observer: Mattias Gestranius (FIN)
NK Celje – Nioman Hrodna
Referee: Daniiar Sahi (KAZ)
Assistant Referee 1: Samat Tergeusızov (KAZ)
Assistant Referee 2: Denis Labaşov (KAZ)
Fourth Official: Bolat Sariev (KAZ)
Referee Observer: Dimitar Mečkarovski (MKD)
B36 Torshavn – HNK Rijeka
Referee: Mohammed Al-Emara (FIN)
Assistant Referee 1: Turkka Valjakka (FIN)
Assistant Referee 2: Juuso Mantere (FIN)
Fourth Official: Peiman Simani (FIN)
Referee Observer: Nicolae Grigorescu (ROU)
FC Twente – Riga FC
Referee: Robert Schröder (GER)
Assistant Referee 1: Christian Gittelmann (GER)
Assistant Referee 2: Robert Wessel (GER)
Fourth Official: Florian Badstübner (GER)
Referee Observer: Goran Mihaljević (MNE)
Fenerbahçe SK – NK Maribor
Referee: Robert Jones (ENG)
Assistant Referee 1: Ian Hussin (ENG)
Assistant Referee 2: Wade Smith (ENG)
Fourth Official: Thomas Bramall (ENG)
Referee Observer: Vadims Direktorenko (LVA)
Club Brugge – KA Akureyri
Referee: Miloš Milanović (SRB)
Assistant Referee 1: Milan Šutulović (SRB)
Assistant Referee 2: Milan Pašaljić (SRB)
Fourth Official: Stanko Ostraćanin (SRB)
Referee Observer: Simon Evans (WAL)
Lech Poznan – Spartak Trnava
Referee: Atilla Karaoğlan (TUR)
Assistant Referee 1: Ceyhun Sesigüzel (TUR)
Assistant Referee 2: Cevdet Kömürcüoğlu (TUR)
Fourth Official: Bahattin Şimşek (TUR)
Referee Observer: Draženko Kovačić (CRO)
Aris – Dynamo Kyiv
Referee: Jarred Gillett (ENG)
Assistant Referee 1: Neil Davies (ENG)
Assistant Referee 2: Harry Lennard (ENG)
Fourth Official: Michael Salisbury (ENG)
Referee Observer: Alexandru Deaconu (ROU)
Hibernian – FC Luzern
Referee: Robertas Valikonis (LTU)
Assistant Referee 1: Edgaras Bučinskas (LTU)
Assistant Referee 2: Benas Kikutis (LTU)
Fourth Official: Orestas Abramavičius (LTU)
Referee Observer: Marco Borg (MLT)
FCSB – Nordsjaelland
Referee: Miloš Bošković (MNE)
Assistant Referee 1: Marjan Paunović (MNE)
Assistant Referee 2: Vladislav Radenović (MNE)
Fourth Official: Radoje Pajović (MNE)
Referee Observer: Karel Vidlak (CZE)
FC Ballkani – Lincoln Red Imps
Referee: Kristoffer Karlsson (SWE)
Assistant Referee 1: Simon Kristensson (SWE)
Assistant Referee 2: Mark Josef (SWE)
Fourth Official: Oscar Johnson (SWE)
Referee Observer: Nerijus Dunauskas (LTU)
Rapid Wien – Debreceni VSC
Referee: Robert Hennessy (IRL)
Assistant Referee 1: Dermot Broughton (IRL)
Assistant Referee 2: Emmett Dynan (IRL)
Fourth Official: Damien MacGraith (IRL)
Referee Observer: Gediminas Mažeika (LTU)
Hajduk – PAOK
Referee: Morten Krogh (DEN)
Assistant Referee 1: Dennis Rasmussen (DEN)
Assistant Referee 2: Steffen Bramsen (DEN)
Fourth Official: Mikkel Redder (DEN)
Referee Observer: Stephen Tanner (ENG)
Legia Warszawa – Austria Wien
Referee: Pierre Gaillouste (FRA)
Assistant Referee 1: Mikael Berchebru (FRA)
Assistant Referee 2: Valentin Evrard (FRA)
Fourth Official: Jeremy Stinat (FRA)
Referee Observer: Rene Temmink (NED)