Arsene Wenger has said that he expects Mesut Ozil to miss "at least a few weeks" after picking up a hamstring injury in Arsenal's Champions League match with Bayern Munich.

The Gunners' record signing did not return for the second half at the Allianz Arena this evening, where the team drew with the German champions but exited the competition because of their first-leg deficit.

Speaking at his post-match press conference, Wenger said: "[Ozil] has a hamstring problem. It looks quite serious. For sure he's out for at least a few weeks."

Ozil is expected to undergo a scan to determine the full extent of the problem tomorrow.