“As soon as I hit it, I knew it was in. It’s definitely the best goal I’ve scored.
“I know how big this game is in Manchester so I hope our supporters enjoyed that.
“Now the aim is to keep scoring and help us win the league.”
His hard-to-please boss, Sir Alex Ferguson, was effusive in his praise for the improving striker.
Ferguson said: “It was stunning. Nani’s opener was an unbelievable goal but nobody in their right sense will even talk about it.
“All the talk will be about that winning goal – unbelievable.”
“I told the players to go home and have a drink,” Mancini said.