Manchester City boss Roberto Mancini insists the title race is not over after defeat to Manchester United.

The Blues' boss also said his team had done enough not only to have earned a point after a magnificent second-half fight-back, but perhaps should have gone on and won the game in the time that remained.

"It's very hard to lose a derby, but even more so in the last minute so I'm very disappointed," said Mancini. "We dominated the second-half and for this reason, I am really disappointed.

"They scored from their first two goal-scoring opportunities but after that, we dominated the game and fought back really well, but we can't then give a goal away after working so hard.

"I think we made a mistake for the Van Persie free-kick at the end by only putting three men in the wall. I wanted four but I couldn't get the instruction over and I think that cost us the goal.

"We should have defended this free-kick better and we had chances to win this game, but there is nothing we can do about it now."