Sir Alex Ferguson described Chris Foy's decision to add five extra minutes at Old Trafford as an "insult" after Manchester United succumbed to a shock 1-0 defeat to Leeds United, but did concede that his side's performance had "shocked" him as they exited the FA Cup.
A first-half goal from Jermaine Beckford saw the home side lose to lower league opposition in the cup competition for the first time since Harry Redknapp's Bournemouth secured a 2-0 win in 1984, ensuring that the result at Old Trafford was the shock of the round.
Ferguson was bemused by the performance of his team which though it included youngsters such as Gabriel Obertan, Danny Welbeck and and Darron Gibson, also boasted two international strikers in the shape of Wayne Rooney and Dimitar Berbatov.
But Ferguson, who this season has already called for the responsibility to award added time to be taken out of the hands of refeeres, was also angered by Foy's decision to signal five extra minutes. He said: "The referee gave five minutes. That is an insult to the game and the players out there."
"The preparation for the game was very good, but I'm shocked by the performance," Ferguson added. "We didn't start right and Leeds did start right. They got their goal and had something to hold onto.
"They fought like tigers, and we expect that with any team coming to Old Trafford for an FA Cup tie. It's a disappointment."
Manchester United now face rivals Manchester City in a midweek Carling Cup semi-final and Ferguson is ready to make widespread changes to his side after such an embarrassing result. Indeed, only winger Antonio Valencia escaped without a reprimand.
"We have a semi-final on Wednesday night and a lot of these players today won't be playing,'' Ferguson said. "You have to view that performance in its right light.
"I don't think any of them can say they had a good day. It took us ten minutes to find him but only Valencia can say he had a good performance. You have to get over these kind of results quickly. We have to make sure we are ready for Wednesday.''