Team News
Arsenal: Chambers, Soares, Tierney, Kolasinac out
Booking away from ban: Mustafi, Xhaka
Olympiacos: Semedo out (suspended)
Booking away from ban: Bouchalakis, El Arabi, Guilherme
Think Arteta will play a stronger team here with more rotation to come against Portsmouth on Monday night
The last time Olympiacos came to the Emirates: