"England midfielder Gareth Barry swore at assistant manager David Platt when he was substituted after just 38 minutes.
"And Mario Balotelli and Yaya Toure had to be dragged apart in the tunnel at half-time after shouting insults at each other.
"While City were fighting, and losing to Luke Moore’s late goal, neighbours United took full advantage."
The Sun's Martin Blackburn picks up on comments from the manager regarding a possible return for Carlos Tevez, "City's next league fixture is at home to Chelsea next Wednesday and the temptation will be to restore striker Carlos Tevez to the squad.
"They have drawn a blank for two successive matches in the last week following on from the flop in Lisbon and their former skipper is on his way back to full fitness.
"Mancini admitted: 'Carlos needs to train again, maybe for another 10 days.
"'I don't think he can be 100 per cent straight away after five months. I believe he can help us in the last two months.'"
But despite our defeat, Roberto Mancini showed his class to praise Swansea, with Wales Online reporting, "Mancini went on record earlier in the year to praise Swansea’s style and he was quick to follow up his compliment even after a result that knocked his team off top spot for the first time since mid-October.
"And asked whether Swansea have done what it takes to make it a second-year in the Premier, the Italian responded: 'They have 36 points now? Then it is easy.
“'I said before they played some of the best football and here they played very well. I don’t think we deserved to lose but they played very well with the ball, especially the first 30 minutes.'”