The 2 points that seem have been speculated the most are that he went against Arteta’s pay cut instruction and his defence of the treatment of Chinese Muslims, which the club had to distance themselves from because of their business interests there. There was also a suggestion he gets appearance bonuses too, so that would explain why he’s left out altogether.
The people who gave him this contract are no longer here. The guys who replaced them didn’t think he was worth it and have probably had him marked for a long time now, as getting rid of him frees up a lot of money that can be put to better use. There’s obviously been a huge falling out somewhere and I think Ozil has just decided to make life difficult for the club for the sake of it, by putting his personal issues above his career. He knows he can’t be touched legally as long as continues to turn up for training.
It’s nothing to do with football IMO because you can’t look at our squad and think Ozil doesn’t have the ability to at least make the bench. It’s a sad and embarrassing mess for everyone involved and I’m sure when he does finally do one we’ll get the full story.
That’s my take on it anyway.