Manchester United have slipped to eight place in the Premier League after being thumped 4-1 by neighbours Manchester City on Sunday afternoon.
City opened the scoring on sixteen minutes through Sergio Aguero, before Yaya Toure doubled their advantage on the stroke of half-time.
Two quick fire goals in early in the second half, firstly from Aguero and then Samir Nasri put the result beyond doubt before Wayne Rooney bagged a late consolation for United three minutes from time with a superb free-kick.
Rooney is now the all-time top scorer in this fixture with eleven goals, but that will be of little comfort to him or manager David Moyes.
Robin Van Persie missed the game with a groin injury, though he should be fit in time to feature in Wednesday evening’s Capital One Cup third round tie against Liverpool.
Meanwhile, a number of players away from the club on loan impressed with their respective clubs over the weekend.
Federico Macheda scored twice on his debut for Doncaster Rovers as they drew with Nottingham Forest, while Jesse Lingard hit all four goals for Birmingham City, who hammered Sheffield Wednesday.
Nick Powell scored a last minute second for Wigan Athletic as the beat Ipswich Town 2-0 at home.