"It is a case of picking his games. There is a lot of football to be played, it is a particularly hectic time with European football and the Premier League.
"So I rested him for the last few games and again today, we have got Rangers on Tuesday and then Liverpool away next Sunday."
With Arsenal and Chelsea also both winning, it continues to be tight at the top of the Barclaycard Premiership, and Ferguson reflected: "It's going to be nip and tuck and it was important for us to win today too."