Retired German midfielder Michael Ballack believes that Arsenal star Mesut Ozil's drop in form is down to the fact that he does not have "the acceptance of the team".

Ozil, who joined the Gunners for a club record £42m in the summer from Real Madrid, has failed to impress in recent weeks at the Emirates Stadium.

"He looks a bit lost in this team," Ballack is quoted as saying by International Business Times when asked about his compatriot. "When he came here there was so much expectation with the quality he has.

"The first games he looked good, played well and was comfortable. With his quality he should be untouchable and bring out so much in the team. But it looks like he has not got the acceptance of the team."

Ozil missed a penalty in the first half of last night's Champions League clash against Bayern Munich.