Crvena Zvezda – FC Copenhagen
Referee: Radu Petrescu ROU (photo)
Assistant Referee 1: Radu Ghinguleac ROU
Assistant Referee 2: Ionuț Neacșu ROU
Fourth Official: Andrei Chivulete ROU
VAR: Ovidiu Hațegan ROU
AVAR: Florin Andrei ROU
Referee Observer: Vadims Direktorenko LVA
Qairat FC – Panathinaikos
Referee: Allard Lindhout NED
Assistant Referee 1: Johan Balder NED
Assistant Referee 2: Dyon Fikkert NED
Fourth Official: Sander van der Eijk NED
VAR: Erwin Blank NED
AVAR: Alex Bos NED
Referee Observer: Michális Argyroú CYP
Pafos FC – Riga FC
Referee: Marian Barbu ROU
Assistant Referee 1: Mircea Grigoriu ROU
Assistant Referee 2: Imre Bucsi ROU
Fourth Official: George Roman ROU
VAR: Sorin Costreie ROU
AVAR: Iulian Dima ROU
Referee Observer: Sergejus Slyva LTU
Getafe FC – FC Lugano
Referee: Atilla Karaoglan TUR
Assistant Referee 1: Ceyhun Sesigüzel TUR
Assistant Referee 2: Murat Altan TUR
Fourth Official: Mehmet Türkmen TUR
VAR: Onur Özütoprak TUR
AVAR: Erkan Engin TUR
Referee Observer: Nicolae Grigorescu ROU
Trabzonspor – Heart of Midlothian
Referee: Lawrence Visser BEL
Assistant Referee 1: Ruben Wyns BEL
Assistant Referee 2: Mathias Hillaert BEL
Fourth Official: Bert Verbeke BEL
VAR: Jan Boterberg BEL
AVAR: Michiel Allaerts BEL
Referee Observer: Dejan Filipović SRB
FK Jablonec – Brighton & Hove Albion
Referee: Sigurd Kringstad NOR
Assistant Referee 1: Ole Haukasen NOR
Assistant Referee 2: Morten Jensen NOR
Fourth Official: Stian Sletner NOR
VAR: Kristoffer Hagenes NOR
AVAR: Svein Sinnes NOR
Referee Observer: Mika Peltola FIN
FC Nordsjelland – CSKA Sofia
Referee: Robert Jones ENG
Assistant Referee 1: Ian Hussin ENG
Assistant Referee 2: Alexander James ENG
Fourth Official: Lewis Smith ENG
VAR: Paul Howard ENG
AVAR: Nick Hopton ENG
Referee Observer: Ognjen Valjić BIH
Inter D’Escaldes – Universitatea Craiova
Referee: Chrístos Vergétis GRE
Assistant Referee 1: Andréas Fotópoulos GRE
Assistant Referee 2: Konstantínos Stáikos GRE
Fourth Official: Dimítrios Móschou GRE
VAR: Ioánnis Papadópoulos GRE
AVAR: Stéfanos Koumbarákis GRE
Referee Observer: Igor Pristovnik CRO
Kauno Zalgiris – SK Brann
Referee: Pavle Ilić SRB
Assistant Referee 1: Nikola Djorović SRB
Assistant Referee 2: Uroš Radovanović SRB
Fourth Official: Miloš Milanović SRB
VAR: Momčilo Marković SRB
AVAR: Dejan Trifković SRB
Referee Observer: Alieh Čykun BLR
Iberia Tbilisi – Mjallby AIF
Referee: Lothar D’Hondt BEL
Assistant Referee 1: Nico Claes BEL
Assistant Referee 2: Kevin Monteny BEL
Fourth Official: Wesli De Cremer BEL
VAR: Nathan Verboomen BEL
AVAR: Erik Lambrechts BEL
Referee Observer: Uno Tutk EST
SC Braga – KAA Gent
Referee: Andris Treimanis LVA
Assistant Referee 1: Haralds Gudermanis LVA
Assistant Referee 2: Artūrs Šakurovs LVA
Fourth Official: Aleksandrs Golubevs LVA
VAR: Ángelos Evangélou GRE
AVAR: Kristaps Ratnieks LVA
Referee Observer: Karel Vidlák CZE
AFC Ajax – Atalanta BC
Referee: António Nobre POR
Assistant Referee 1: Nélson Pereira POR
Assistant Referee 2: Francisco Pereira POR
Fourth Official: David Silva POR
VAR: Juan Martínez Munuera ESP
AVAR: Ana Ribeiro POR
Referee Observer: Augustus Constantin ROU
AS Monaco – SC Freiburg
Referee: Samuel Barrott ENG
Assistant Referee 1: Adam Nunn ENG
Assistant Referee 2: Wade Smith ENG
Fourth Official: Anthony Harrington ENG
VAR: Michael Salisbury ENG
AVAR: Paul Tierney ENG
Referee Observer: Frank De Bleeckere BEL
FC Midtjylland – Sint Truidense
Referee: Juxhin Xhaja ALB
Assistant Referee 1: Arbër Zalla ALB
Assistant Referee 2: Mario Shazivari ALB
Fourth Official: Enea Jorgji ALB
VAR: Daniele Doveri ITA
AVAR: Olsion Yzeiraj ALB
Referee Observer: Marco Fritz GER
Lincoln Imps – FC Twente
Referee: Matteo Marcenaro ITA
Assistant Referee 1: Alberto Tegoni ITA
Assistant Referee 2: Giorgio Peretti ITA
Fourth Official: Ermanno Feliciani ITA
VAR: Valerio Marini ITA
AVAR: Davide Ghersini ITA
Referee Observer: William Young SCO
Borac Banja Luka – KUPS Kuopio
Referee: Ivar Kristjánsson ISL
Assistant Referee 1: Birkir Sigurdarson ISL
Assistant Referee 2: Gylfi Sigurdsson ISL
Fourth Official: Vilhjálmur Thórarinsson ISL
VAR: Jakob Kehlet DEN
AVAR: Mads-Kristoffer Kristoffersen DEN
Referee Observer: Andrejs Sipailo LVA
AGF Aarhus – KF Egnatia
Referee: Ante Čulina CRO
Assistant Referee 1: Dario Kolarević CRO
Assistant Referee 2: Kristijan Novosel CRO
Fourth Official: Mateo Erceg CRO
VAR: Mario Zebec CRO
AVAR: Ivan Vučković CRO
Referee Observer: Giorgi Vadachkoria GEO
FC Thun – Hajduk Split
Referee: Jarred Gillett ENG
Assistant Referee 1: Neil Davies ENG
Assistant Referee 2: Nick Greenhalgh ENG
Fourth Official: Farai Hallam ENG
VAR: Peter Bankes ENG
AVAR: James Bell ENG
Referee Observer: Antonio Damato ITA
