Robin Van Persie score an injury time free kick to send Manchester United six points clear at the top of the Premier League after beating rivals Manchester City at the Etihad Stadium.
The Dutchman’s late hammer blow ended City’s unbeaten home record and capped off a miserable week for Roberto Mancini after his side crashed out of the Champions League in the group stage on Tuesday.
And they lost further ground in the title race despite coming close to snatching an unlikely point after recovering from going two goals behind to Sir Alex Ferguson’s men before half time.
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Wayne Rooney had set United on the way to avenging last season's double derby defeat to City by scoring twice in the first half against the run of play to take his career league tally to 150 goals.
City's staged a second-half comeback, with Yaya Toure netting on the hour and Pablo Zabaleta equalizing in the 86th minute.
But Van Persie, who Arsenal claimed had been made an offer by City in the offseason, struck the late blow that ended the hosts' unbeaten league home run - stretching back to December 2010.
"Today was a special one simply because they haven't lost at home for two years, both of us are contending at the top of the league," United manager Alex Ferguson said. "It was a fantastic game, you couldn't take your eyes off that."
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