Manchester City defender Manuel Akanji says Bruno Fernandes' equalising goal in the Manchester derby was a "joke", while Manchester United boss Erik ten Hag admitted he "wouldn't be happy if we conceded a goal like this".
Fernandes swept past Ederson to cancel out Jack Grealish's opener, but the goal was initially ruled out with assistant referee Darren Cann raising his flag for offside against Marcus Rashford.
The England international was clearly offside, and ran towards the ball, but after a conversation with Cann referee Stuart Attwell decided Rashford did not interfere with play.
Rashford turned home Alejandro Garnacho's cross moments later to give United a 2-1 win at a raucous Old Trafford, leaving them one point behind second-placed City.