The New Saints – Vikingur Reykjavik
Referee: Ivaylo Stoyanov (BUL, photo)
Assistant Referee 1: Ivo Kolev (BUL)
Assistant Referee 2: Miroslav Ivanov (BUL)
Fourth Official: Stanimir Trenchev (BUL)
Referee Observer: Jan Carlsen (DEN)
Lincoln Red Imps – Tobyl FK
Referee: Gal Leibovitz (ISR)
Assistant Referee 1: Yossi Babayoff (ISR)
Assistant Referee 2: Omer Barbiro (ISR)
Fourth Official: Shalom Ben Avraham (ISR)
Referee Observer: Marco Borg (MLT)
KF Ballkani – La Fiorita
Referee: Adam Ladebäck (SWE)
Assistant Referee 1: Daniel Yng (SWE)
Assistant Referee 2: Niclas Ivarsson (SWE)
Fourth Official: Victor Wolf (SWE)
Referee Observer: Markus Nobs (SUI)
Inter d’Escaldes – CFR Cluj
Referee: Kristoffer Hagenes (NOR)
Assistant Referee 1: Anders Dale (NOR)
Assistant Referee 2: Christer Jorgensen (NOR)
Fourth Official: Sivert Amland (NOR)
Referee Observer: Kenneth Clark (SCO)
AIK – Vorskla Poltava
Referee: Miloš Milanović (SRB)
Assistant Referee 1: Milan Šutulović (SRB)
Assistant Referee 2: Čedomir Andrejić (SRB)
Fourth Official: Marko Ivković (SRB)
Referee Observer: Asim Khudiyev (AZE)
KI Klaksvik – FK Sutjeska
Referee: Christian Ciochirca (AUT)
Assistant Referee 1: Andreas Witschnigg (AUT)
Assistant Referee 2: Martin Höfler (AUT)
Fourth Official: Alexander Harkam (AUT)
Referee Observer: Eyjolfur Olafsson (ISL)
FK Homiel – Aris Thessalonikis
Referee: Nicolas Laforge (BEL)
Assistant Referee 1: Laurent Conotte (BEL)
Assistant Referee 2: Ruben Wyns (BEL)
Fourth Official: Wesli De Cremer (BEL)
Referee Observer: Andreas Schluchter (SUI)
FK Astana – Rakow Czestochowa
Referee: Tomaš Klima (CZE)
Assistant Referee 1: Ivo Nadvornik (CZE)
Assistant Referee 2: Lukaš Machač (CZE)
Fourth Official: Ladislav Szikszay (CZE)
Referee Observer: Giorgi Vadachkoria (GEO)
Qabala IK - MOL Fehervar
Referee: Ivaylo Stoyanov (BUL, photo)
Assistant Referee 1: Ivo Kolev (BUL)
Assistant Referee 2: Miroslav Ivanov (BUL)
Fourth Official: Stanimir Trenchev (BUL)
Referee Observer: Jan Carlsen (DEN)
Lincoln Red Imps – Tobyl FK
Referee: Gal Leibovitz (ISR)
Assistant Referee 1: Yossi Babayoff (ISR)
Assistant Referee 2: Omer Barbiro (ISR)
Fourth Official: Shalom Ben Avraham (ISR)
Referee Observer: Marco Borg (MLT)
KF Ballkani – La Fiorita
Referee: Adam Ladebäck (SWE)
Assistant Referee 1: Daniel Yng (SWE)
Assistant Referee 2: Niclas Ivarsson (SWE)
Fourth Official: Victor Wolf (SWE)
Referee Observer: Markus Nobs (SUI)
Inter d’Escaldes – CFR Cluj
Referee: Kristoffer Hagenes (NOR)
Assistant Referee 1: Anders Dale (NOR)
Assistant Referee 2: Christer Jorgensen (NOR)
Fourth Official: Sivert Amland (NOR)
Referee Observer: Kenneth Clark (SCO)
AIK – Vorskla Poltava
Referee: Miloš Milanović (SRB)
Assistant Referee 1: Milan Šutulović (SRB)
Assistant Referee 2: Čedomir Andrejić (SRB)
Fourth Official: Marko Ivković (SRB)
Referee Observer: Asim Khudiyev (AZE)
KI Klaksvik – FK Sutjeska
Referee: Christian Ciochirca (AUT)
Assistant Referee 1: Andreas Witschnigg (AUT)
Assistant Referee 2: Martin Höfler (AUT)
Fourth Official: Alexander Harkam (AUT)
Referee Observer: Eyjolfur Olafsson (ISL)
FK Homiel – Aris Thessalonikis
Referee: Nicolas Laforge (BEL)
Assistant Referee 1: Laurent Conotte (BEL)
Assistant Referee 2: Ruben Wyns (BEL)
Fourth Official: Wesli De Cremer (BEL)
Referee Observer: Andreas Schluchter (SUI)
FK Astana – Rakow Czestochowa
Referee: Tomaš Klima (CZE)
Assistant Referee 1: Ivo Nadvornik (CZE)
Assistant Referee 2: Lukaš Machač (CZE)
Fourth Official: Ladislav Szikszay (CZE)
Referee Observer: Giorgi Vadachkoria (GEO)
Qabala IK - MOL Fehervar
Referee: Christopher Jäger (AUT)
Assistant Referee 1: Robert Steinacher (AUT)
Assistant Referee 2: Santino Schreiner (AUT)
Fourth Official: Markus Hameter (AUT)
Referee Observer: Niklas a Lidarenda (FRO)
Paide Linnameeskond – Ararat Armenia
Referee: Damian Sylwestrzak (POL)
Assistant Referee 1: Marek Arys (POL)
Assistant Referee 2: Adam Karasewicz (POL)
Fourth Official: Paweł Malec (POL)
Referee Observer: Kostadin Gerginov (BUL)
Kisvarda FC – Qairat FK
Referee: Chrysovalandis Theouli (CYP)
Assistant Referee 1: Michail Sotiriou (CYP)
Assistant Referee 2: Pavlos Georgiou (CYP)
Fourth Official: Georgios Nikolaou (CYP)
Referee Observer: Edward Foley (IRL)
Milsami Orhei – KuPS Kuopio
Referee: Trustin Farrugia Cann (MLT)
Assistant Referee 1: Duncan Sultana (MLT)
Assistant Referee 2: Edward Spiteri (MLT)
Fourth Official: Stephen Pace (MLT)
Referee Observer: Jens Larsen (DEN)
Maccabi Netanya – Istanbul Başakşehir
Referee: Dario Bel (CRO)
Assistant Referee 1: Marjan Tomas (CRO)
Assistant Referee 2: Kruno Šarić (CRO)
Fourth Official: Tihomir Pejin (CRO)
Referee Observer: Cyril Zimmermann (SUI)
IF Elfsborg – Molde FK
Referee: Peter Bankes (ENG)
Assistant Referee 1: Neil Davies (ENG)
Assistant Referee 2: James Mainwaring (ENG)
Fourth Official: John Brooks (ENG)
Referee Observer: Vadims Direktorenko (LVA)
Levadia Tallinn – Hibernians FC
Referee: Henrik Nalbandyan (ARM)
Assistant Referee 1: Artur Gdlyan (ARM)
Assistant Referee 2: Vanik Simonyan (ARM)
Fourth Official: Zaven Hovhannisyan (ARM)
Referee Observer: Vladimir Medved (SVK)
Dinamo Batumi – Lech Poznan
Referee: Igor Stojčevski (MKD)
Assistant Referee 1: Goce Petreski (MKD)
Assistant Referee 2: Slagan Markoski (MKD)
Fourth Official: Stojančo Trpčevski (MKD)
Referee Observer: Ferenc Szekely (HUN)
Radnički Niš – Gzira United
Referee: Andrei Chivulete (ROU)
Assistant Referee 1: Sebastian Gheorghe (ROU)
Assistant Referee 2: Andrei Constantinescu (ROU)
Fourth Official: Iulian Călin (ROU)
Referee Observer: Haim Jakov (ISR)
Apoel – Botev Plovdiv
Referee: Morten Krogh (DEN)
Assistant Referee 1: Steffen Bramsen (DEN)
Assistant Referee 2: Jakob Mastrup (DEN)
Fourth Official: Aydin Uslu (DEN)
Referee Observer: Darko Čeferin (SVN)
Neftçi PFK – Aris Limassol
Referee: Bastian Dankert (GER)
Assistant Referee 1: Jan Seidel (GER)
Assistant Referee 2: Eduard Beitinger (GER)
Fourth Official: Sven Jablonski (GER)
Referee Observer: Zoran Petrović (SRB)
CSKA Sofia – FK Makedonija
Referee: David Coote (ENG)
Assistant Referee 1: Ian Hussin (ENG)
Assistant Referee 2: Nick Hopton (ENG)
Fourth Official: Robert Jones (ENG)
Referee Observer: Hannes Kaasik (EST)
Olimpija Ljubljana – Sepsi Sfântu Gheorghe
Referee: Sebastian Gishamer (AUT)
Assistant Referee 1: Roland Riedel (AUT)
Assistant Referee 2: Maximilian Weiss (AUT)
Fourth Official: Alan Kijas (AUT)
Referee Observer: Dejan Filipović (SRB)
Lillestrom SK – SJK Seinäjoki
Referee: Iwan Griffith (WAL)
Assistant Referee 1: Jonathon Bryant (WAL)
Assistant Referee 2: Connor Thomas (WAL)
Fourth Official: Aaron Jones (WAL)
Referee Observer: Andrejs Sipailo (LVA)
Slavia Praha – St. Joseph’s FC
Referee: Tomasz Musial (POL)
Assistant Referee 1: l Siejka (POL)
Assistant Referee 2: Sebastian Mucha (POL)
Fourth Official: Sebastian Krasny (POL)
Referee Observer: Pavle Radovanović (MNE)
Newtown AFC – Spartak Trnava
Referee: Aristotelis Diamantopoulos (GRE)
Assistant Referee 1: Konstantinos Psarris (GRE)
Assistant Referee 2: Andraas Meindanas (GRE)
Fourth Official: Vasilios Fotias (GRE)
Referee Observer: Domagoj Vučkov (CRO)
Viborg FF – FK Suduva
Referee: James Robinson (NIR)
Assistant Referee 1: Stephen Donaldson (NIR)
Assistant Referee 2: Adam Jeffrey (NIR)
Fourth Official: Shane Andrews (NIR)
Referee Observer: Albano Janku (ALB)
Riga FC – MFK Ružomberok
Referee: Jasmin Sabotic (LUX)
Assistant Referee 1: Claude Ries (LUX)
Assistant Referee 2: Tom Hansen (LUX)
Fourth Official: Laurent Wilmes (LUX)
Referee Observer: Ruud Bossen (NED)
Djurgardens IF – HNK Rijeka
Referee: Snir Levi (ISR)
Assistant Referee 1: Matityahu Yakobov (ISR)
Assistant Referee 2: Rostislav Talis (ISR)
Fourth Official: Idan Leiba (ISR)
Referee Observer: Lassin Isaksen (FRO)
Viking FK – Sparta Praha
Referee: Visar Kastrati (KOS)
Assistant Referee 1: Granit Hyseni (KOS)
Assistant Referee 2: Lumturije Muhadri (KOS)
Fourth Official: Alban Shala (KOS)
Referee Observer: Gunnar Jonsson (ISL)
FCSB – Saburtalo
Referee: Jonathan Lardot (BEL)
Assistant Referee 1: Florian Lemaire (BEL)
Assistant Referee 2: Romain Devillers (BEL)
Fourth Official: Jasper Vergoote (BEL)
Referee Observer: Thoroddur Hjaltalin (ISL)
Maccabi Tel Aviv – Zira PFK
Referee: Mario Zebec (CRO)
Assistant Referee 1: Hrvoje Radić (CRO)
Assistant Referee 2: Luka Pušić (CRO)
Fourth Official: Ante Čuljak (CRO)
Referee Observer: Iain Robertson Brines (SCO)
Universitatea Craiova – KF Vllaznia
Referee: Ondřej Berka (CZE)
Assistant Referee 1: Matěj Vlček (CZE)
Assistant Referee 2: Jakub Hrabovsky (CZE)
Fourth Official: Pavel Orel (CZE)
Referee Observer: Georgi Yordanov (BUL)
PAOK – Levski Sofia
Referee: Cesar Soto Grado (ESP)
Assistant Referee 1: Iker de Francisco Grijalba (ESP)
Assistant Referee 2: Carlos Alvarez Fernandez (ESP)
Fourth Official: Alejandro Muniz Ruiz (ESP)
Referee Observer: Jouni Hyytia (FIN)
Lechia Gdansk – Rapid Wien
Referee: Alessandro Dudic (SUI)
Assistant Referee 1: Jan Köbeli (SUI)
Assistant Referee 2: Efe Kurnazca (SUI)
Fourth Official: Alain Bieri (SUI)
Referee Observer: Augustus Constantin (ROU)
Hamrun Spartans – FK Velez
Referee: Juri Frischer (EST)
Assistant Referee 1: Veiko Mõtsnik (EST)
Assistant Referee 2: Sander Saga (EST)
Fourth Official: Kristo Külljastinen (EST)
Referee Observer: Sascha Amhof (SUI)
Dynamo Minsk – Hapoel Beer Sheva
Referee: Marian Barbu (ROU)
Assistant Referee 1: Mircea Orbuleț (ROU)
Assistant Referee 2: Imre Bucsi (ROU)
Fourth Official: Lucian Ruaandu (ROU)
Referee Observer: Lucilio Batista (POR)
Konyaspor – Bate Borisov
Referee: Novak Simović (SRB)
Assistant Referee 1: Nikola Djorović (SRB)
Assistant Referee 2: Miloš Simović (SRB)
Fourth Official: Stanko Ostraćanin (SRB)
Referee Observer: Robert Małek (POL)
BSC Young Boys – FK Liepaja
Referee: Abdulkadir Bitigen (TUR)
Assistant Referee 1: Ceyhun Sesigüzel (TUR)
Assistant Referee 2: Mustafa Savranlar (TUR)
Fourth Official: Tugay Numanoğlu (TUR)
Referee Observer: Calum Murray (SCO)
NS Mura – Saint Patrick’s Athletic
Referee: Urs Schnyder (SUI)
Assistant Referee 1: Marco Zürcher (SUI)
Assistant Referee 2: Benjamin Zürcher (SUI)
Fourth Official: Sven Wolfensberger (SUI)
Referee Observer: Martin Ingvarsson (SWE)
Brondby IF – Pogon Szczecin
Referee: Alexandre Boucaut (BEL)
Assistant Referee 1: Thibaud Nijssen (BEL)
Assistant Referee 2: Vito Di Vincenzo (BEL)
Fourth Official: Lothar D’Hondt (BEL)
Referee Observer: Edgar Steinborn (GER)
Sligo Rovers – Motherwell FC
Referee: Bojan Pandzic (SWE)
Assistant Referee 1: Niklas Nyberg (SWE)
Assistant Referee 2: Mark Josef (SWE)
Fourth Official: Per Melin (SWE)
Referee Observer: Sergejus Slyva (LTU)
FC Vaduz – FC Koper
Referee: Besfort Kasumi (KOS)
Assistant Referee 1: Edmond Zeqiri (KOS)
Assistant Referee 2: Fatmir Sekiraqa (KOS)
Fourth Official: Gramos Shala (KOS)
Referee Observer: Rune Pedersen (NOR)
KF Drita – Royal Antwerp
Referee: Sander van der Eijk (NED)
Assistant Referee 1: Rens Bluemink (NED)
Assistant Referee 2: Dyon Fikkert (NED)
Fourth Official: Martin Perez (NED)
Referee Observer: Draženko Kovačić (CRO)
KF Laci – Petrocub Hîncești
Referee: Manuel Schüttengruber (AUT)
Assistant Referee 1: Roland Brandner (AUT)
Assistant Referee 2: Clemens Schüttengruber (AUT)
Fourth Official: Rene Eisner (AUT)
Referee Observer: Fredy Fautrel (FRA)
FK Čukarički – Union Lëtzebuerg
Referee: Bolat Sariev (KAZ)
Assistant Referee 1: Sergei Vasiytni (KAZ)
Assistant Referee 2: Sergei Kalachev (KAZ)
Fourth Official: Elvira Nurmustafina (KAZ)
Referee Observer: Michalis Koukoulakis (GRE)
FK Škendija – Valmiera FC
Referee: Kevin Clancy (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Sean Carr (SCO)
Fourth Official: Craig Napier (SCO)
Referee Observer: Guy Goethals (BEL)
NK Osijek – Qyzyljar SK
Referee: Anastasios Papapetrou (GRE)
Assistant Referee 1: Tryfon Petropoulos (GRE)
Assistant Referee 2: Iordanis Aptosoglou (GRE)
Fourth Official: Andreas Gamaris (GRE)
Referee Observer: Salustia Chipres (AND)
Buducnost Podgorica – Breidablik
Referee: Thomas Owen (WAL)
Assistant Referee 1: Daniel Beckett (WAL)
Assistant Referee 2: Lewiss Edwards (WAL)
Fourth Official: Bryn Markham-Jones (WAL)
Referee Observer: Erol Ersoy (TUR)
FK Tuzla – AZ Alkmaar
Referee: Ashot Ghaltakhchyan (ARM)
Assistant Referee 1: Atom Sevgulyan (ARM)
Assistant Referee 2: Harutyun Hambardzumyan (ARM)
Fourth Official: Artem Gasparyan (ARM)
Referee Observer: Boško Jovanetić (SRB)
Tre Fiori – B36 Torshavn
Referee: Daniel Schlager (GER)
Assistant Referee 1: Robert Kempter (GER)
Assistant Referee 2: Arno Blos (GER)
Fourth Official: Tobias Reichel (GER)
Referee Observer: Uno Tutk (EST)
HŠK Zrinjski – KF Tirana
Referee: Yaşar Ugurlu (TUR)
Assistant Referee 1: Ali Ögel (TUR)
Assistant Referee 2: Abdullah Özkara (TUR)
Fourth Official: Kadir Sağlam (TUR)
Referee Observer: Michal Beneš (CZE)
Dunajska Streda – Víkingur
Referee: Juxhin Xhaja (ALB)
Assistant Referee 1: Ridiger Çokaj (ALB)
Assistant Referee 2: Mario Shazivari (ALB)
Fourth Official: Erjon Bastari (ALB)
Referee Observer: Jan Wegereef (NED)
Crusaders FC – FC Basel
Referee: David Šmajc (SVN)
Assistant Referee 1: David Gabrovec (SVN)
Assistant Referee 2: Tomaž Černe (SVN)
Fourth Official: Alen Borošak (SVN)
Referee Observer: Tomasz Mikulski (POL)
Puskas Akademia – Vitoria SC
Referee: Jakob Sundberg (DEN)
Assistant Referee 1: Deniz Yurdakul (DEN)
Assistant Referee 2: Lars Rix (DEN)
Fourth Official: Jonas Hansen (DEN)
Referee Observer: Goran Mihaljević (MNE)
Assistant Referee 1: Robert Steinacher (AUT)
Assistant Referee 2: Santino Schreiner (AUT)
Fourth Official: Markus Hameter (AUT)
Referee Observer: Niklas a Lidarenda (FRO)
Paide Linnameeskond – Ararat Armenia
Referee: Damian Sylwestrzak (POL)
Assistant Referee 1: Marek Arys (POL)
Assistant Referee 2: Adam Karasewicz (POL)
Fourth Official: Paweł Malec (POL)
Referee Observer: Kostadin Gerginov (BUL)
Kisvarda FC – Qairat FK
Referee: Chrysovalandis Theouli (CYP)
Assistant Referee 1: Michail Sotiriou (CYP)
Assistant Referee 2: Pavlos Georgiou (CYP)
Fourth Official: Georgios Nikolaou (CYP)
Referee Observer: Edward Foley (IRL)
Milsami Orhei – KuPS Kuopio
Referee: Trustin Farrugia Cann (MLT)
Assistant Referee 1: Duncan Sultana (MLT)
Assistant Referee 2: Edward Spiteri (MLT)
Fourth Official: Stephen Pace (MLT)
Referee Observer: Jens Larsen (DEN)
Maccabi Netanya – Istanbul Başakşehir
Referee: Dario Bel (CRO)
Assistant Referee 1: Marjan Tomas (CRO)
Assistant Referee 2: Kruno Šarić (CRO)
Fourth Official: Tihomir Pejin (CRO)
Referee Observer: Cyril Zimmermann (SUI)
IF Elfsborg – Molde FK
Referee: Peter Bankes (ENG)
Assistant Referee 1: Neil Davies (ENG)
Assistant Referee 2: James Mainwaring (ENG)
Fourth Official: John Brooks (ENG)
Referee Observer: Vadims Direktorenko (LVA)
Levadia Tallinn – Hibernians FC
Referee: Henrik Nalbandyan (ARM)
Assistant Referee 1: Artur Gdlyan (ARM)
Assistant Referee 2: Vanik Simonyan (ARM)
Fourth Official: Zaven Hovhannisyan (ARM)
Referee Observer: Vladimir Medved (SVK)
Dinamo Batumi – Lech Poznan
Referee: Igor Stojčevski (MKD)
Assistant Referee 1: Goce Petreski (MKD)
Assistant Referee 2: Slagan Markoski (MKD)
Fourth Official: Stojančo Trpčevski (MKD)
Referee Observer: Ferenc Szekely (HUN)
Radnički Niš – Gzira United
Referee: Andrei Chivulete (ROU)
Assistant Referee 1: Sebastian Gheorghe (ROU)
Assistant Referee 2: Andrei Constantinescu (ROU)
Fourth Official: Iulian Călin (ROU)
Referee Observer: Haim Jakov (ISR)
Apoel – Botev Plovdiv
Referee: Morten Krogh (DEN)
Assistant Referee 1: Steffen Bramsen (DEN)
Assistant Referee 2: Jakob Mastrup (DEN)
Fourth Official: Aydin Uslu (DEN)
Referee Observer: Darko Čeferin (SVN)
Neftçi PFK – Aris Limassol
Referee: Bastian Dankert (GER)
Assistant Referee 1: Jan Seidel (GER)
Assistant Referee 2: Eduard Beitinger (GER)
Fourth Official: Sven Jablonski (GER)
Referee Observer: Zoran Petrović (SRB)
CSKA Sofia – FK Makedonija
Referee: David Coote (ENG)
Assistant Referee 1: Ian Hussin (ENG)
Assistant Referee 2: Nick Hopton (ENG)
Fourth Official: Robert Jones (ENG)
Referee Observer: Hannes Kaasik (EST)
Olimpija Ljubljana – Sepsi Sfântu Gheorghe
Referee: Sebastian Gishamer (AUT)
Assistant Referee 1: Roland Riedel (AUT)
Assistant Referee 2: Maximilian Weiss (AUT)
Fourth Official: Alan Kijas (AUT)
Referee Observer: Dejan Filipović (SRB)
Lillestrom SK – SJK Seinäjoki
Referee: Iwan Griffith (WAL)
Assistant Referee 1: Jonathon Bryant (WAL)
Assistant Referee 2: Connor Thomas (WAL)
Fourth Official: Aaron Jones (WAL)
Referee Observer: Andrejs Sipailo (LVA)
Slavia Praha – St. Joseph’s FC
Referee: Tomasz Musial (POL)
Assistant Referee 1: l Siejka (POL)
Assistant Referee 2: Sebastian Mucha (POL)
Fourth Official: Sebastian Krasny (POL)
Referee Observer: Pavle Radovanović (MNE)
Newtown AFC – Spartak Trnava
Referee: Aristotelis Diamantopoulos (GRE)
Assistant Referee 1: Konstantinos Psarris (GRE)
Assistant Referee 2: Andraas Meindanas (GRE)
Fourth Official: Vasilios Fotias (GRE)
Referee Observer: Domagoj Vučkov (CRO)
Viborg FF – FK Suduva
Referee: James Robinson (NIR)
Assistant Referee 1: Stephen Donaldson (NIR)
Assistant Referee 2: Adam Jeffrey (NIR)
Fourth Official: Shane Andrews (NIR)
Referee Observer: Albano Janku (ALB)
Riga FC – MFK Ružomberok
Referee: Jasmin Sabotic (LUX)
Assistant Referee 1: Claude Ries (LUX)
Assistant Referee 2: Tom Hansen (LUX)
Fourth Official: Laurent Wilmes (LUX)
Referee Observer: Ruud Bossen (NED)
Djurgardens IF – HNK Rijeka
Referee: Snir Levi (ISR)
Assistant Referee 1: Matityahu Yakobov (ISR)
Assistant Referee 2: Rostislav Talis (ISR)
Fourth Official: Idan Leiba (ISR)
Referee Observer: Lassin Isaksen (FRO)
Viking FK – Sparta Praha
Referee: Visar Kastrati (KOS)
Assistant Referee 1: Granit Hyseni (KOS)
Assistant Referee 2: Lumturije Muhadri (KOS)
Fourth Official: Alban Shala (KOS)
Referee Observer: Gunnar Jonsson (ISL)
FCSB – Saburtalo
Referee: Jonathan Lardot (BEL)
Assistant Referee 1: Florian Lemaire (BEL)
Assistant Referee 2: Romain Devillers (BEL)
Fourth Official: Jasper Vergoote (BEL)
Referee Observer: Thoroddur Hjaltalin (ISL)
Maccabi Tel Aviv – Zira PFK
Referee: Mario Zebec (CRO)
Assistant Referee 1: Hrvoje Radić (CRO)
Assistant Referee 2: Luka Pušić (CRO)
Fourth Official: Ante Čuljak (CRO)
Referee Observer: Iain Robertson Brines (SCO)
Universitatea Craiova – KF Vllaznia
Referee: Ondřej Berka (CZE)
Assistant Referee 1: Matěj Vlček (CZE)
Assistant Referee 2: Jakub Hrabovsky (CZE)
Fourth Official: Pavel Orel (CZE)
Referee Observer: Georgi Yordanov (BUL)
PAOK – Levski Sofia
Referee: Cesar Soto Grado (ESP)
Assistant Referee 1: Iker de Francisco Grijalba (ESP)
Assistant Referee 2: Carlos Alvarez Fernandez (ESP)
Fourth Official: Alejandro Muniz Ruiz (ESP)
Referee Observer: Jouni Hyytia (FIN)
Lechia Gdansk – Rapid Wien
Referee: Alessandro Dudic (SUI)
Assistant Referee 1: Jan Köbeli (SUI)
Assistant Referee 2: Efe Kurnazca (SUI)
Fourth Official: Alain Bieri (SUI)
Referee Observer: Augustus Constantin (ROU)
Hamrun Spartans – FK Velez
Referee: Juri Frischer (EST)
Assistant Referee 1: Veiko Mõtsnik (EST)
Assistant Referee 2: Sander Saga (EST)
Fourth Official: Kristo Külljastinen (EST)
Referee Observer: Sascha Amhof (SUI)
Dynamo Minsk – Hapoel Beer Sheva
Referee: Marian Barbu (ROU)
Assistant Referee 1: Mircea Orbuleț (ROU)
Assistant Referee 2: Imre Bucsi (ROU)
Fourth Official: Lucian Ruaandu (ROU)
Referee Observer: Lucilio Batista (POR)
Konyaspor – Bate Borisov
Referee: Novak Simović (SRB)
Assistant Referee 1: Nikola Djorović (SRB)
Assistant Referee 2: Miloš Simović (SRB)
Fourth Official: Stanko Ostraćanin (SRB)
Referee Observer: Robert Małek (POL)
BSC Young Boys – FK Liepaja
Referee: Abdulkadir Bitigen (TUR)
Assistant Referee 1: Ceyhun Sesigüzel (TUR)
Assistant Referee 2: Mustafa Savranlar (TUR)
Fourth Official: Tugay Numanoğlu (TUR)
Referee Observer: Calum Murray (SCO)
NS Mura – Saint Patrick’s Athletic
Referee: Urs Schnyder (SUI)
Assistant Referee 1: Marco Zürcher (SUI)
Assistant Referee 2: Benjamin Zürcher (SUI)
Fourth Official: Sven Wolfensberger (SUI)
Referee Observer: Martin Ingvarsson (SWE)
Brondby IF – Pogon Szczecin
Referee: Alexandre Boucaut (BEL)
Assistant Referee 1: Thibaud Nijssen (BEL)
Assistant Referee 2: Vito Di Vincenzo (BEL)
Fourth Official: Lothar D’Hondt (BEL)
Referee Observer: Edgar Steinborn (GER)
Sligo Rovers – Motherwell FC
Referee: Bojan Pandzic (SWE)
Assistant Referee 1: Niklas Nyberg (SWE)
Assistant Referee 2: Mark Josef (SWE)
Fourth Official: Per Melin (SWE)
Referee Observer: Sergejus Slyva (LTU)
FC Vaduz – FC Koper
Referee: Besfort Kasumi (KOS)
Assistant Referee 1: Edmond Zeqiri (KOS)
Assistant Referee 2: Fatmir Sekiraqa (KOS)
Fourth Official: Gramos Shala (KOS)
Referee Observer: Rune Pedersen (NOR)
KF Drita – Royal Antwerp
Referee: Sander van der Eijk (NED)
Assistant Referee 1: Rens Bluemink (NED)
Assistant Referee 2: Dyon Fikkert (NED)
Fourth Official: Martin Perez (NED)
Referee Observer: Draženko Kovačić (CRO)
KF Laci – Petrocub Hîncești
Referee: Manuel Schüttengruber (AUT)
Assistant Referee 1: Roland Brandner (AUT)
Assistant Referee 2: Clemens Schüttengruber (AUT)
Fourth Official: Rene Eisner (AUT)
Referee Observer: Fredy Fautrel (FRA)
FK Čukarički – Union Lëtzebuerg
Referee: Bolat Sariev (KAZ)
Assistant Referee 1: Sergei Vasiytni (KAZ)
Assistant Referee 2: Sergei Kalachev (KAZ)
Fourth Official: Elvira Nurmustafina (KAZ)
Referee Observer: Michalis Koukoulakis (GRE)
FK Škendija – Valmiera FC
Referee: Kevin Clancy (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Sean Carr (SCO)
Fourth Official: Craig Napier (SCO)
Referee Observer: Guy Goethals (BEL)
NK Osijek – Qyzyljar SK
Referee: Anastasios Papapetrou (GRE)
Assistant Referee 1: Tryfon Petropoulos (GRE)
Assistant Referee 2: Iordanis Aptosoglou (GRE)
Fourth Official: Andreas Gamaris (GRE)
Referee Observer: Salustia Chipres (AND)
Buducnost Podgorica – Breidablik
Referee: Thomas Owen (WAL)
Assistant Referee 1: Daniel Beckett (WAL)
Assistant Referee 2: Lewiss Edwards (WAL)
Fourth Official: Bryn Markham-Jones (WAL)
Referee Observer: Erol Ersoy (TUR)
FK Tuzla – AZ Alkmaar
Referee: Ashot Ghaltakhchyan (ARM)
Assistant Referee 1: Atom Sevgulyan (ARM)
Assistant Referee 2: Harutyun Hambardzumyan (ARM)
Fourth Official: Artem Gasparyan (ARM)
Referee Observer: Boško Jovanetić (SRB)
Tre Fiori – B36 Torshavn
Referee: Daniel Schlager (GER)
Assistant Referee 1: Robert Kempter (GER)
Assistant Referee 2: Arno Blos (GER)
Fourth Official: Tobias Reichel (GER)
Referee Observer: Uno Tutk (EST)
HŠK Zrinjski – KF Tirana
Referee: Yaşar Ugurlu (TUR)
Assistant Referee 1: Ali Ögel (TUR)
Assistant Referee 2: Abdullah Özkara (TUR)
Fourth Official: Kadir Sağlam (TUR)
Referee Observer: Michal Beneš (CZE)
Dunajska Streda – Víkingur
Referee: Juxhin Xhaja (ALB)
Assistant Referee 1: Ridiger Çokaj (ALB)
Assistant Referee 2: Mario Shazivari (ALB)
Fourth Official: Erjon Bastari (ALB)
Referee Observer: Jan Wegereef (NED)
Crusaders FC – FC Basel
Referee: David Šmajc (SVN)
Assistant Referee 1: David Gabrovec (SVN)
Assistant Referee 2: Tomaž Černe (SVN)
Fourth Official: Alen Borošak (SVN)
Referee Observer: Tomasz Mikulski (POL)
Puskas Akademia – Vitoria SC
Referee: Jakob Sundberg (DEN)
Assistant Referee 1: Deniz Yurdakul (DEN)
Assistant Referee 2: Lars Rix (DEN)
Fourth Official: Jonas Hansen (DEN)
Referee Observer: Goran Mihaljević (MNE)
