Manchester United fought back from two goals down at half time to win 3-2 in a stunning turn around at the Etihad.
But City were first denied a penalty in the first half at 0-0 and then another stone wall spot kick at 3-2 down with Ashley Young at fault on both occasions.
The second should have seen him sent off for a lunge on Sergio Aguero.
Paul Pogba has scored twice to respond to Vincent Kompany and Ilkay Gundogan’s goals.
Chris Smalling then scored the third to completely shell-shock City.
City will now have to wait until at least April 14 to be crowned champions when they face Tottenham at Wembley.
City were furious with the officiating with Martin Atkinson and lost their heads in the second half the fiery Etihad clash.
Both sets of players clashed as the match turned ugly with City chasing an equaliser.
United had come to spoil the party and despite a tame performance in the first half they were able to do.
It started in disaster as Kompany and then Gundogan put City ahead – and they should have been out of sight at the break.
Two goals looked enough at the time before United staged their fightback.
Pogba bulldozed through twice to level the tie before Smalling sent in the winner.
David de Gea then pulled off a stunning stop from Sergio Aguero and Raheem Sterling was denied by the post as time ran down.
