Manchester United shocked rivals City 2-1 at the Etihad Stadium on Saturday, leaving Pep Guardiola's men third in the Premier League and 14 points adrift of leaders Liverpool.
Marcus Rashford and Anthony Martial both scored in a space of six minutes to give United a 2-0 first-half lead, and City substitute Nicolas Otamendi could only grab a consolation five minutes from time.
Chelsea suffered a third loss in four league games on Saturday, opening Week 16 with a 3-1 defeat at Goodison Park. Duncan Ferguson made a triumphant start as interim Toffees manager.
Dominic Calvert-Lewin scored twice for the home side following a Richarlison opener, and former Toffee Ferguson ended Everton's run of three losses in a row with a turn-up against the odds.
Jose Mourinho's Tottenham Hotspur climbed to sixth and within six points of the Blues in fourth after they demolished Burnley 5-0 at home thanks, in part, to a Harry Kane brace.
Liverpool temporarily restored an 11-point cushion at the top of the table following a convincing victory away to Bournemouth, where Mohamed Salah scored and assisted in a 3-0 win.
Everton 3-1 Chelsea
Bournemouth 0-3 Liverpool
Tottenham Hotspur 5-0 Burnley
Watford 0-0 Crystal Palace
Manchester City 1-2 Manchester United
Premier League Table
Ole Gunnar Solskjaer was victorious in his first visit to the Etihad as United manager, with Martial scoring on his return to the side after Rashford won and converted his own penalty for the opener.
The visitors looked electric in attack from the beginning and punished the Citizens early on, with Nicolas Otamendi's header coming too late to be anything but a consolation, via Sky Sports (UK viewers only):
The fixture was marred, however, after the Manchester City press office cited multiple United players who said they suffered racist abuse at the Etihad (h/t NBC Sports, via journalist Chris Williams):
United moved above Spurs and into fifth after ending a run of three away games without a win in all competitions.
Guardiola has hit a concerning patch in form by the standards of this City squad, but faith in Solskjaer looks to be renewed for the time being, not long after his position at Old Trafford seemed in doubt:
Tottenham are back within reach of the Premier League's top four after responding to their recent defeat at Manchester United as Mourinho would have hoped, downing Burnley in vicious fashion in north London.
Spurs look more consistently dangerous in attack since Mourinho took over—a change some tactical analysts may find ironic—and Kane looked particularly accurate on the day, via NBC (U.S. viewers only):
The England frontman scored twice and assisted Moussa Sissoko for Tottenham's fifth on the day, while Lucas Moura and Heung-min Son also added to the scoresheet.
The home crowd reminded their peers of Kane's majesty in front of goal, per Alasdair Gold of Football.London:
Tottenham will have rivals Chelsea looking over their shoulders after the west Londoners were stunned 3-1 at Goodison Park, leaving Frank Lampard's outfit with one win in their last five games across all competitions.
Mateo Kovacic scored not long after Calvert-Lewin's first to halve the deficit early in the second half, but the latter bagged a second near full-time to earn Everton's first win in almost a month, per Statman Dave:
Liverpool will be happy to hear of any peers dropping points, but they came through another test with flying colours in their trip to the Vitality Stadium.
Alex Oxlade-Chamberlain returned to the Reds XI and scored the breakthrough goal. Naby Keita doubled the advantage with his first goal since April, then assisted Salah for Liverpool's third on the south coast.
Jurgen Klopp's side are yet to be beaten domestically this season and have looked imperious in the Premier League, per Sky Sports Statto:
Nigel Pearson made his debut as new Watford manager and drew 0-0 at home to Crystal Palace, leaving the Hornets six points from safety.