Mancini was pleased with City's rout of Newcastle United on the weekend.
He said: â€œThe gap isnâ€™t the real value. Itâ€™s seven or six points, not 15.
â€œThat gap isnâ€™t correct. We showed this in the first derby when we deserved to win and lost.
â€œUnited have the mentality you expect from winning everything in 20 years and you know if you donâ€™t play well, itâ€™s important to win. But, in the end, every team that wins the title deserves it.
â€œThey won a lot of games to stay on the top and they deserve to win this championship."