Arsenal v 1.FC Köln, 14 September 2017
| Score | 3-1 to Arsenal |
| Referee | Xavier Estrada Fernández |
| Competition | UEFA Europa League Group H |
| Venue | Emirates Stadium |
| Attendance | 59,359 |
View Arsenal v 1.FC Köln head to head
Kick-off was delayed by an hour to 9.05pm BST in the interests of crowd safety.
An estimated 20,000 away supporters descended on North London. Despite the German club being given a ticket allocation of only 2,900, thousands more gained entry into the stadium.
3 Arsenal
Manager: Arsène Wenger
Goals:
| Sead Kolašinac | 49 |
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| Alexis Sánchez | 67 |
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| Héctor Bellerín | 82 |
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Starting lineup:
Goalkeeper
David Ospina
Defender
Héctor Bellerín
Defender
Rob Holding
Defender
Per Mertesacker
(captain)
Defender
Nacho Monreal
Midfielder
Mohamed El Neny
Midfielder/Forward
Alex Iwobi
Midfielder/Forward
Ainsley Maitland-Niles
Midfielder/Forward
Alexis Sánchez
Midfielder/Forward
Theo Walcott
Forward
Olivier Giroud
Substitutions:
| Sead Kolašinac for Rob Holding | 46 |
| Jack Wilshere for Alex Iwobi | 68 |
| Reiss Nelson for Theo Walcott | 83 |
On the bench:
Goalkeeper
Matt Macey
Defender
Shkodran Mustafi
Defender/Midfielder
Sead Kolašinac
Midfielder
Reiss Nelson
Midfielder
Jeff Reine-Adelaide
Midfielder
Jack Wilshere
Forward
Chuba Akpom
1 1.FC Köln
Manager: Peter Stöger
Goals:
| Jhon Córdoba | 9 |
|
Starting lineup:
Timo Horn
Goalkeeper
Jonas Hector
Defender
Dominique Heintz
Defender
Lukas Klünter
Defender
Jorge Meré
Defender
Konstantin Rausch
Defender
Marco Höger
Midfielder
Matthias Lehmann
Midfielder
(captain)
Leonardo Bittencourt
Midfielder/Forward
Jhon Córdoba
Forward
Simon Zoller
Forward
Substitutions:
| Miloš Jojić for Jonas Hector | 35 |
| Marcel Risse for Simon Zoller | 64 |
| Yūya Osako for Lukas Klünter | 76 |
On the bench:
Goalkeeper
Thomas Kessler
Defender
Jannes Horn
Defender
Frederik Sorensen
Midfielder
Miloš Jojić
Midfielder
Marcel Risse
Midfielder/Forward
Sehrou Guirassy
Forward
Yūya Osako