The photo was obscured by the Mancunian fog and it was accompanied by the caption: "If you find out who is hidden by the fog, you are unplayable..."
The German winger's hairstyle prompted one Twitter user to jokingly respond "Fellaini", and the City account could not resist taking a swipe at the Red Devil.
"No, he is a football player," they wrote, a post retweeted and liked by thousands. City certainly have earned the rights to brag at the moment...
Man City's French language Twitter account taking the piss out of Fellaini... pic.twitter.com/MowXhaPe8u
— Si Lloyd (@SmnLlyd5) 18 December 2017