The annoying thing is Grealish just stops, throws his arms in the air and the ref gives it. Yates goes down holding his head, ref, under clear instructions to stop the game in the case of head injuries, plays on, City score.
That's my presumption, but I'm struggling to make the personnel fit with so many wide players and without making it way too open.
But hey <looks at score>
That was a shit dive by Yates with no contact so the ref was spot on, although arguably he should have booked Yates. I live Yates but giving up on any attempt to defend in favour of trying to buy a free kick with no contact was dreadful.