Arsenal were crushed 5-1 by Bayern Munich at the Football Arena Munchen in the Champions League Group F.
Robert Lewandowski opened the scoring on 10 minutes but Arsenal thought they had equalised just minutes later when Özil put the ball in the back of the net but it was ruled out by the fifth official for handball.
Muller doubled the home sides lead on 29 minutes and Alaba gave Bayern a comfortable 3-0 lead going into the half time break.
Second half substitute Arjen Robben scored the fourth soon after the interval. Olivier Giroud gave Arsenal a glimmer of hope when he pulled one back on 69 minutes but Muller rubbed more salt in the wounds when he scored Bayern’s fifth.
The defeat saw Arsenal drop into last place in the group and will have to beat Olympiakos in Greece if they are to stand any chance of progressing to the next stage.
Bayern Munich v Arsenal
Kick-Off: 19:45 GMT
Referee: Gianluca Rocchi
Stadium: Football Arena Munchen
Bayern: Neuer; Lahm, Martínez, Boateng, Alaba; Alonso; Robben, Thiago, Douglas Costa; Müller, Lewandowski.
Out: Götze (groin), Ribéry (ankle), Rode (thigh)
Doubtful: Badstuber (thigh), Bernat (groin)
Arsenal: Čech; Debuchy, Mertesacker, Gabriel, Monreal; Coquelin, Cazorla; Campbell, Özil, Sánchez; Giroud.
Out: Walcott (calf), Oxlade-Chamberlain (hamstring), Arteta (ankle), Ramsey (hamstring), Ospina (shoulder), Wilshere (calf), Rosický (knee), Welbeck (knee), Bellerín (groin)
Goals: 10′ Lewandowski, 29′ Muller, 42′ Alaba, 55′ Robben, 69′ Giroud, 89′ Muller