"I am really happy for my team, the club and the supporters," said the boss.
"It's always very difficult when you play United, whether it be at home or away, so to score four goals here I have to be really pleased.
"I'd also like to say thanks to my staff who have been working very hard. While I was answering questions at the press conference, all my staff were preparing the players for this game.
"The most important thing was to see my team get three points and see how well the players played.
"Manchester United have a fantastic team and a fantastic squad, and you saw their bench with the three players [Dimitar Berbatov, Paul Scholes and Ryan Giggs] they brought on, but our gameplan was clear. We tried to stop them playing and we closed the spaces and made it very difficult for them to create chances.
"This week we have beaten two of the top sides in Europe in Real Madrid and Manchester United, and scored four goals in both games, so that is fantastic and again, we have to be really pleased."
