19 September 2019
PSV Eindhoven – Sporting CP
Referee: Ivan Kružliak (SVK, photo)
Assistant Referee 1: Tomáš Somoláni (SVK)
Assistant Referee 2: Branislav Hancko (SVK)
Fourth Official: Peter Královič (SVK)
Referee Observer: Murat Ilgaz (TUR)
Qarabağ FK – Sevilla FC
Referee: Yevhen Aranovskyy (UKR)
Assistant Referee 1: Semen Shlonchak (UKR)
Assistant Referee 2: Ihor Alokhin (UKR)
Fourth Official: Yaroslav Kozyk (UKR)
Referee Observer: Elmir Pilav (BIH)
Apoel FC – F91 Dudelange
Referee: Dumitru Muntean (MDA)
Assistant Referee 1: Victor Mardari (MDA)
Assistant Referee 2: Vadim Vicol (MDA)
Fourth Official: Alexandru Tean (MDA)
Referee Observer: Michális Koukoulákis (GRE)
Dynamo Kyiv – Malmö FF
Referee: Aleksandar Stavrev (MKD)
Assistant Referee 1: Marjan Kirovski (MKD)
Assistant Referee 2: Dejan Kostadinov (MKD)
Fourth Official: Dimitar Mečkarovski (MKD)
Referee Observer: Boško Jovanetić (SRB)
FC København – FC Lugano
Referee: Fábio Veríssimo (POR)
Assistant Referee 1: Luís Campos (POR)
Assistant Referee 2: Álvaro Mesquita (POR)
Fourth Official: António Nobre (POR)
UEFA Referee Observer: Konrad Plautz (AUT)
Getafe – Trabzonspor
Referee: Matej Jug (SVN)
Assistant Referee 1: Matej Žunič (SVN)
Assistant Referee 2: Grega Kordež (SVN)
Fourth Official: Dejan Balažič (SVN)
Referee Observer: Marián Ružbarský (SVK)
FC Basel – FC Krasnodar
Referee: Mattias Gestranius (FIN)
Assistant Referee 1: Jan-Peter Aravirta (FIN)
Assistant Referee 2: Mikko Alakare (FIN)
Fourth Official: Ville Nevalainen (FIN)
Referee Observer: Laurent Duhamel (FRA)
Linzer ASK – Rosenborg BK
Referee: Donatas Rumšas (LTU)
Assistant Referee 1: Aleksandr Radiuš (LTU)
Assistant Referee 2: Dovydas Sužiedėlis (LTU)
Fourth Official: Donatas Šimėnas (LTU)
Referee Observer: Frank De Bleeckere (BEL)
Stade Rennais – Celtic FC
Referee: José Sánchez Martínez (ESP)
Assistant Referee 1: Raúl Cabañero Martínez (ESP)
Assistant Referee 2: Íñigo Prieto López (ESP)
Fourth Official: Santiago Jaime Latre (ESP)
Referee Observer: Andrejs Sipailo (LVA)
CFR Cluj – Lazio
Referee: Daniel Stefański (POL)
Assistant Referee 1: Marcin Boniek (POL)
Assistant Referee 2: Dawid Golis (POL)
Fourth Official: Damian Sylwestrzak (POL)
Referee Observer: Rien Koopman (NED)
Eintracht Frankfurt – Arsenal FC
Referee: Davide Massa (ITA)
Assistant Referee 1: Alberto Tegoni (ITA)
Assistant Referee 2: Stefano Alassio (ITA)
Fourth Official: Fabrizio Pasqua (ITA)
Referee Observer: Jaap Uilenberg (NED)
Standard de Liège – Vitória SC
Referee: Sergei Ivanov (RUS)
Assistant Referee 1: Roman Usachov (RUS)
Assistant Referee 2: Valeri Danchenko (RUS)
Fourth Official: Sergei Lapochkin (RUS)
Referee Observer: Robert Małek (POL)
FC Porto – BSC Young Boys
Referee: Andris Treimanis (LVA)
Assistant Referee 1: Haralds Gudermanis (LVA)
Assistant Referee 2: Aleksejs Spasjonņikovs (LVA)
Fourth Official: Aleksandrs Golubevs (LVA)
Referee Observer: Nicola Rizzoli (ITA)
Rangers – Feyenoord
Referee: Antonio Mateu Lahoz (ESP)
Assistant Referee 1: Roberto Diaz Perez (ESP)
Assistant Referee 2: Pau Cebrian Devis (ESP)
Fourth Official: Jose Gonzalez Gonzalez (ESP)
Referee Observer: John Ward (IRL)
PFC Ludogorets – CSKA Moskva
Referee: Irfan Peljto (BIH)
Assistant Referee 1: Senad Ibrišimbegović (BIH)
Assistant Referee 2: Davor Beljo (BIH)
Fourth Official: Admir Šehović (BIH)
Referee Observer: Alain Hamer (LUX)
Espanyol de Barcelona – Ferencvárosi TC
Referee: Nikola Dabanović (MNE)
Assistant Referee 1: Milutin Djukić (MNE)
Assistant Referee 2: Vladan Todorović (MNE)
Fourth Official: Miloš Bošković (MNE)
Referee Observer: Roberto Rosetti (ITA)
KAA Gent – AS Saint Étienne
Referee: Roi Reinshreiber (ISR)
Assistant Referee 1: David Biton (ISR)
Assistant Referee 2: Dvir Shimon (ISR)
Fourth Official: Gal Leibovitz (ISR)
Referee Observer: Lassin Isaksen (FRO)
VfL Wolfsburg – FC Oleksandriya
Referee: Halis Özkahya (TUR)
Assistant Referee 1: Ceyhun Sesigüzel (TUR)
Assistant Referee 2: Hakan Yemişken (TUR)
Fourth Official: Alper Ulusoy (TUR)
Referee Observer: Charles Agius (MLT)
AS Roma – Medipol Başakşehir
Referee: Xavier Estrada Fernández (ESP)
Assistant Referee 1: Roberto Alonso Fernández (ESP)
Assistant Referee 2: Teodoro Sobrino Magán (ESP)
Fourth Official: José Munuera Montero (ESP)
Referee Observer: Kristinn Jakobsson (ISL)
Borussia Mönchengladbach – Pellets Wolfsberger
Referee: Tamás Bognár (HUN)
Assistant Referee 1: Péter Kóbor (HUN)
Assistant Referee 2: Balázs Szert (HUN)
Fourth Official: Péter Solymosi (HUN)
Referee Observer: Shmuel Shteif (ISR)
Slovan Bratislava – Beşiktaş JK
Referee: Kristo Tohver (EST)
Assistant Referee 1: Silver Kõiv (EST)
Assistant Referee 2: Aron Härsing (EST)
Fourth Official: Juri Frischer (EST)
Referee Observer: Luis Medina Cantalejo (ESP)
Wolverhampton Wanderers – SC Braga
Referee: Jakob Kehlet (DEN)
Assistant Referee 1: Lars Hummelgaard (DEN)
Assistant Referee 2: Heine Sørensen (DEN)
Fourth Official: Jens Maae (DEN)
Referee Observer: Stávros Tritsónis (GRE)
FK Partizan – AZ Alkmaar
Referee: Marco Guida (ITA)
Assistant Referee 1: Giorgio Peretti (ITA)
Assistant Referee 2: Daniele Bindoni (ITA)
Fourth Official: Fabio Maresca (ITA)
Referee Observer: Gylfi Orrason (ISL)
Manchester United – FC Astana
Referee: François Letexier (FRA)
Assistant Referee 1: Cyril Mugnier (FRA)
Assistant Referee 2: Mehdi Rahmouni (FRA)
Fourth Official: Jérôme Brisard (FRA)
Referee Observer: Tomasz Mikulski (POL)