Manchester City secured three points at Old Trafford on Sunday to extend their lead at the top of the Premier League to 11 points and maintain their unbeaten start.
In what was billed as one of the most important Manchester derbies in years, the visitors dominated United throughout, recording 65% possession and controlling the tempo.
It was a defensive lapse, however, that gave the Blues the lead before half-time – David Silva was unmarked from a corner to prod home.
United responded excellently, though, and Fabian Delph’s error gave Marcus Rashford the opportunity to level the score, which he did with an accurate finish.
In the second period it was City that once again looked more likely to score, and they re-took the lead after Romelu Lukaku – clumsy throughout – failed to clear a free-kick, giving Nicolas Otamendi a simple chance to fire in from close-range.
The home team struggled to create any clear-cut chances until Anthony Martial crossed for Lukaku who fired straight at Ederson; the Brazilian then made a brilliant second save to deny Juan Mata.
In the end City were keeping hold of the ball at ease in the corner to further humiliate the Red Devils, in a result that makes it most unlikely that they will be caught in the rest of the campaign.