Manchester United came from behind to trash City 3-2 at The Etihad Stadium, extending City’s hope of being crowned Premier League champions.
Pep Guardiola’s men needed an outright win and began the match in fine fashion.
Vincent Kompany headed City in front, before Ilkay Gundogan rounded off a fine team move to make it 2-0.
However, United fought back in the second half, with Paul Pogba scoring a two-minute brace to level the match.
Chris Smalling then side-footed Alexis Sanchez’s free-kick past Ederson to claim all three points for Jose Mourinho’s men.
With the victory, the Red Devils have now cut City’s lead at the top to 13 points, with six matches left.