Looks like Pool going with a standard 4-2-3-1 with Coutinho in the center where he should be.
#Arsenal team v Galatasaray: Szczesny, Chambers, Mertesacker, Koscielny, Gibbs, Flamini, Cazorla, Ozil, Alexis, Oxlade-Chamberlain, Welbeck
Looks like Ox will be playing in central midfield for the first time this season.