Manchester United beat rivals Manchester City for the first time in five Premier League attempts with a stirring 4-2 comeback victory at Old Trafford.
City's title defence had crumbled heading into the match amid a run of five defeats in seven matches across all competitions, but the champions briefly displayed their fluent best in the early stages - Sergio Aguero's seventh goal in derbies after seven minutes the reward.
The direct, high-tempo approach United have found success with in recent weeks provided their route back into the match, with Ashley Young levelling before supplying the ammunition for Marouane Fellaini to give the hosts a 27th-minute lead.