Actually Cardozo is a great player.
Mancini, I don't know what he'll do, I think the entire club spent too much time whining about referees (when they got a lot of decisions their way) and focusing on Tevez instead of building up their lead. I also think Fergie's mind-games might unsettle them just enough for them to lose a further one or two points and United only ned to not lose at Eastlands to be on their own from there onwards.
Daily topic in Portuguese football, but our referees are bad. Even though it's the same every season, nobody does anything to fix it.