MUNICH – Mesut Özil's unhappy spell continued on March 11 when the Arsenal and Germany midfielder suffered an injury against Bayern Munich that manager Arsene Wenger said is likely to keep him out for several weeks. Özil, the club's record signing, was substituted at halftime during the 1-1 draw in the last 16 second leg at the Allianz Arena which saw holders Bayern progress 3-1 on aggregate.Local media reported Özil had sustained a hamstring injury though Wenger did not confirm that. "It looks quite serious," said Wenger. "I don't know (how long Özil will be missing) but for sure he is out (of the Tottenham Hotspur game on Sunday). "We have to make a scan tomorrow to see how bad it is but he's out for at least a few weeks. I hope it's not too bad."Özil's injury came just as he appeared to be turning the corner following a run of misfortune.He scored the first goal in a 4-1 win FA Cup win over Everton on Saturday.