The Italian said: "I don't think in these last two years there is a team that has played better than us.
"We are a strong team. We have been unlucky because we lost two or three players in January for the African Cup.
"Yaya (Toure) is an important player for us. When he doesn't play he is important. We've missed him a lot in these last 20 days."
As for United's commitments in Europe, he added: "When you play in the Champions League against Real Madrid you can lose your strength in this game.
"So we support Manchester United to go through in the Champions League."
When asked at Friday's pre-match press conference of his future at City, he answered quickly: "Yes, yes. Why not?"