Arsenal's away record in Europe has been pretty poor recently, with the Gunners winning just one of their last five in this competition, a set of results that includes losses to the likes of Lens (2-1) and Porto (1-0) and a 1-1 draw with PSV.
Atalanta, on the other hand, lost just one game in European competition last season, a 0-1 loss to Liverpool, and will prove a very tricky opponent.
With Arsenal still without talisman Martin Ødegaard, we think they'll find three points hard to come by here. Atalanta 1-1 Arsenal.