Darren Fletcher's goal in the first half ended London's "Chelsea" 40-game unbeaten streak in the English championship.
Although it seemed that the "Man Utd" goalie tried to "cross" the ball, the ball flew into the top corner of the net.
At the beginning of the second half, the Dutchman Ruud van Nistelrooy could have doubled the score, but he shot above the goal. This missed opportunity cost a lot of nerves for the young "Man Utd" players, as "Chelsea" attacks followed one after another, and the most dangerous moment in front of the "Red Devils" goal was when Frank Lampard's shot was saved by Edwin van der Sar.
This victory allowed the Manchester players to rise six positions to third place on the league table.
Moreover, it was the 19th anniversary of Sir Alex Ferguson's appointment as the head coach of "Man Utd" and the victory against the league leaders will undoubtedly silence the critics. The coach received quite a bit of criticism after Wednesday's minimal loss in the UEFA Champions League match in Paris against "Lille" players.
Meanwhile, the loss became the fourth failure for "Chelsea" in two weeks - they were knocked out of the "Carling Cup", then played a draw with "Charlton" in the English championship, and in the middle of this week, they lost 1-0 in the UEFA Champions League match in Seville to the local "Betis" club.
In the other Sunday matches, Liverpool's "Everton" defeated "Middlesbrough" 1-0. James Beattie scored the only goal of the match with a header in the 16th minute, helping "Everton" secure their first home win in this year's Premiership season.
1 - 0 London 31` [1 - 0] Darren Fletcher
Liverpool 1 - 0 16` [1 - 0] James Beattie
Standings
Top scorers: 1. Frank Lampard (Chelsea) - 10 goals; 2. Ruud van Nistelrooy (Manchester United) - 8; 3. Darren Bent (Charlton Athletic) - 7; 4-5. Yakubu Aiyegbeni (Middlesbrough) - 6; 4-5. Didier Drogba (Chelsea) - 6; 6-7. Thierry Henry (Arsenal) - 5; 6-7. Andy Cole (Manchester City) - 5.