Manchester City boss Roberto Mancini says they know where the reports are coming from of dressing room clashes.

There are reports of dressing room unrest, specifically rows with both Joe Hart and Mario Balotelli immediately after the United defeat.

"It is usual for me to talk to the players," said Mancini. "Also sometimes you can have a discussion.

"But I prefer to keep it in the dressing room, not like some other people who talk outside.

"For me it is not like this. We know where these stories come from."