Fergie recognised Carrickâ€™s value and welcomed a straightforward win, which included Unitedâ€™s first clean sheet since November.
He said: â€œGetting a Michael Carrick is very difficult these days.
â€œCarrick is the key to it. If you look at the central midfielders in the Premier League, he can match any of them in terms of quality.
â€œHe can read the game and also play in front of the back four."