Unnoticed? Referees see EXACTLY what they want to see, I'm convinced of this. A push/foul ON a City player (e, Aguero) is waved away, but a similar action BY a City player is an immediate free kick.
It happened on at least 4 occasions last night. Right at the end, Navas was kicked right in front of us, and Atkinson again waved play on, letting them build a frantic attack.
It's all too obvious. (And I'm serfectly pober as I'm typing this, with my blue-tinted glasses around somewhere, but I've forgotten where I put them.)