Some over reactions here regarding that tackle and the ref. Taking emotions out of it for a second because it was on Gundogan and It was a poor challenge but nothing more. Some might even say a good tactical foul. The comments here reminds me a bit of the time De Jong broke Ben Arfa's leg and there was a witchhunt for him from everyone else. The ref let a few tackles go he probably should have carded but he wasn't that bad. None of them were red cards, and he didn't make any glaring errors.
The referee was shite