The Gunners host Irish side Dundalk in their second Group B fixture following a come-from-behind victory in Austria in their opening match.
Zlatan Ibrahimovic's AC Milan, who next host Roma, are flying high, the only team with maximum points after four games.
Few expect an easy passage into the quarter-finals and if they get there, even fewer expect them to survive against Bayern Munich.
Juventus were crowned champions for the 36th time, but wrapped up their season with the lowest number of points of their nine-season title run.
Arteta has improved the side since landing his first managerial role in December
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