Arsenal were embarrassed on Thursday evening when they lost 1-0 away to BATE Borisov in the Europa League.
Head of the defeat, Martin Keown questioned the German’s situation and suggested that it’s becoming “embarrassing”.
"Is he injured? Is he ill? One thing as a player you've got to be is available for selection and you want to give consistency," the former Arsenal defender said on BT Sport.
"He hasn't been able to give either of those. He's got to work to get back into the team. That is what the manager is asking for that is what he has to do. It is becoming embarrassing the Ozil situation. No [Aaron] Ramsey of course as well. Him not being part of the future is hard to take."
He also suggested that Ozil need to think about his long-term future.
"We don't know if he is really injured or not. To miss that amount of games is quite remarkable, isn't it," Keown continued.
"I think the manager is saying 'you can't just turn up and train when you want to when you fancy it. I'm not going to take you on this trip because you haven't trained enough' and that is right and proper. I still feel he has got something to offer. But the player has to ask himself where does he want to play his football?"