Sir Alex Ferguson has defended Mick McCarthy's controversial team selection at Old Trafford on Tuesday.
Wolves manager McCarthy has come under fire for leaving all 10 outfield players from the weekend win at Tottenham out of their clash with Manchester United.
"Mick McCarthy did the right thing for Wolves," said Ferguson.
"We looked at their performance against Tottenham and the amount of running they had to do. I said five or six of those players could not play.
"In addition to the actual match, they had been down to London, then they had to travel to Manchester and they also play Burnley at the weekend.
"We didn't think they would play their full side. We worked through the ones who did all the running and worked out who we thought it would be.
"We didn't expect 10 but we weren't far wrong."
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