The Bulgarian striker bagged his third hat-trick of the 2010/11 campaign but like the other scorers Nani and Ryan Giggs, he was also involved in creating openings for others. And it wasn't just the starting eleven who impressed - Sir Alex sent on Darron Gibson for Michael Carrick in an enforced early change, before taking advantage of United's comfortable lead to give Fabio and Michael Owen a run-out.
"It helps when you score an early goal," the boss told MUTV. "Getting one after a minute forces the opposition to open up. They have to face the game from a different perspective and we capitalised on that. It was a good score at half-time and I was able to take Patrice Evra off and give him a break, and bring young Fabio on. Then I was able to take Ryan Giggs off because we've got a big game on Tuesday [at Blackpool]."
Giggs' goal - virtually the last kick of the first half - epitomised the performance: "The third goal was a very exciting goal," said Sir Alex. "First of all Berba won the ball, then there was the interplay with Wayne and a fantastic ball from Wayne to Ryan. It was a really exciting goal and coming right on half-time it killed the match."
It was fitting that Giggs should score, the day after both he and his manager talked about the winger's extraordinary 20-year top-flight career extending into next season. "He could easily play for another year, he's as fresh as a daisy," said the boss. "We manage him in the right way and he looks after himself correctly. Being able to take him off today was a bonus."
For all Giggs' evergreen brilliance, the headlines will go to Berbatov. "He was marvellous and he