Arsenal hero Bob Wilson fears for their top four chances.
The Gunners are five points adrift of fourth-placed Chelsea.
"Arsenal are right up against it," Wilson told talkSPORT. "If you were a betting man you would not back them to finish in the top four this season.
"They've got a lot to do to get into that top four. The performance [against Bayern Munich] is a massive fillip for them though. To beat a team that are on the top of their game, haven't lost at home in ages and have great individuals will be a huge boost to their morale."