Dynamo Kyiv – Partizan
Referee: Christian Dingert GER (photo)
Assistant Referee 1: Christian Dietz GER
Assistant Referee 2: Nikolai Kimmeyer GER
Fourth Official: Florian Badstübner GER
VAR: Sören Storks GER
AVAR: Katrin Rafalski GER
Referee Observer: Geórgios Bíkas GRE
Bodo Glimt – RFS
Referee: Donald Robertson SCO
Assistant Referee 1: David Roome SCO
Assistant Referee 2: Ross Macleod SCO
Fourth Official: Grant Irvine SCO
VAR: Kevin Clancy SCO
AVAR: Greg Aitken SCO
Referee Observer: Markus Strömbergsson SWE
Panevezys – Jagiellonia
Referee: Novak Simović SRB
Assistant Referee 1: Nikola Djorović SRB
Assistant Referee 2: Miloš Simović SRB
Fourth Official: Pavle Tomić SRB
VAR: Momčilo Marković SRB
AVAR: Aleksandar Živković SRB
Referee Observer: Sascha Amhof SUI
Lincoln Red Imps – Qarabag
Referee: István Vad HUN
Assistant Referee 1: Vencel Tóth HUN
Assistant Referee 2: István Albert HUN
Fourth Official: Bence Csonka HUN
VAR: Daniele Chiffi ITA
AVAR: Marco Serra ITA
Referee Observer: Christof Dierick BEL
Apoel – Petrocub
Referee: Robert Schröder GER
Assistant Referee 1: Dominik Schaal GER
Assistant Referee 2: Sven Waschitzki GER
Fourth Official: Martin Petersen GER
VAR: Pascal Müller GER
AVAR: Johann Pfeifer GER
Referee Observer: Vlado Svilokos CRO
Malmo – Klaksvik
Referee: Lukas Fähndrich SUI
Assistant Referee 1: Guillaume Maire SUI
Assistant Referee 2: Nicolas Müller SUI
Fourth Official: Nico Gianforte SUI
VAR: Sven Wolfensberger SUI
AVAR: Mirel Turkes SUI
Referee Observer: Simon Evans WAL
FCSB – Maccabi Tel Aviv
Referee: Gergő Bogár HUN
Assistant Referee 1: Theodoros Georgiou HUN
Assistant Referee 2: Balázs Szalai HUN
Fourth Official: Csaba Pintér HUN
VAR: Tamás Bognár HUN
AVAR: Ferenc Karakó HUN
Referee Observer: Marco Borg MLT
Ferencvaros – The New Saints
Referee: Guillermo Cuadra Fernández ESP
Assistant Referee 1: Guadalupe Porras Ayuso ESP
Assistant Referee 2: Alejandro Estévez Iglesias ESP
Fourth Official: Mateo Busquets Ferrer ESP
VAR: Valentín Pizarro Gómez ESP
AVAR: Miguel Ortiz Arias ESP
Referee Observer: Alain Bieri SUI
Santa Coloma – Midtjylland
Referee: Abdulkadir Bitigen TUR
Assistant Referee 1: Ibrahim Uyarcan TUR
Assistant Referee 2: Mustafa Savranlar TUR
Fourth Official: Ümit Öztürk TUR
VAR: Hakan Ceylan TUR
AVAR: Koray Gençerler TUR
Referee Observer: Andreas Schluchter SUI
Lugano – Fenerbahce
Referee: Tiago Martins POR
Assistant Referee 1: Bruno Jesus POR
Assistant Referee 2: Hugo Ribeiro POR
Fourth Official: Miguel Nogueira POR
VAR: Hugo Miguel POR
AVAR: Bruno Esteves POR
Referee Observer: Jens Larsen DEN
Shamrock Rovers – Sparta Praha
Referee: Joey Kooij NED
Assistant Referee 1: Patrick Inia NED
Assistant Referee 2: Murat Kücükerbir NED
Fourth Official: Jannick van der Laan NED
VAR: Clay Ruperti NED
AVAR: Erwin Blank NED
Referee Observer: Alain Sars FRA
PAOK – Borac Banja Luka
Referee: David Šmajc SVN
Assistant Referee 1: David Gabrovec SVN
Assistant Referee 2: Tomaž Černe SVN
Fourth Official: Dejan Balažič SVN
VAR: Alen Borošak SVN
AVAR: Dragoslav Perić SVN
Referee Observer: Paweł Gil POL
PFK Ludogorets – Dynamo Minsk
Referee: Eldorjan Hamiti ALB
Assistant Referee 1: Ilir Tartaraj ALB
Assistant Referee 2: Emigers Gançi ALB
Fourth Official: Erjon Bastari ALB
VAR: Kreshnik Bajramaj ALB
AVAR: Enea Jorgji ALB
Referee Observer: Alon Yefet ISR
NK Celje – Slovan Bratislava
Referee: Darren England ENG
Assistant Referee 1: James Mainwaring ENG
Assistant Referee 2: Nick Greenhalgh ENG
Fourth Official: Thomas Bramall ENG
VAR: Jarred Gillett ENG
AVAR: Tony Harrington ENG
Referee Observer: László Vágner HUN