Jose Mourinho lambasted his Manchester United players after Saturday's shock 2-1 defeat at Huddersfield Town enabled Manchester City to move five points clear at the Premier League summit.
Aaron Mooy and Laurent Depoitre scored at the John Smith's Stadium to give Huddersfield a first win over United since 1952 and condemn Mourinho's side to their first loss of the campaign.
"It's another chapter in the fairytale we started nearly two years ago," said Huddersfield's German manager David Wagner.
"Today was our moment. It makes everyone very happy and very proud."
City took full advantage of United's slip by beating Burnley 3-0, with Sergio Aguero equalling Eric Brook's club scoring record of 177 goals.
Defending champions Chelsea closed to within four points of second-place United by beating Watford 4-2 and Tottenham Hotspur can draw level with Mourinho's men if they beat Liverpool on Sunday.
United's defeat followed their 0-0 draw at Liverpool last weekend and a laboured 1-0 victory away to Benfica in the Champions League.
A furious Mourinho said: "When I lose matches, I like to lose because the opponent was better, had more quality. When you lose because of attitude, that is really bad."
Things started to go wrong for United in the 23rd minute when Phil Jones was forced off by an apparent hip injury, with Victor Lindelof taking his place.
Huddersfield went ahead five minutes later when Australian Mooy, a former City player, robbed Juan Mata and followed in to score after David de Gea had saved from Tom Ince.
Lindelof was at fault as Depoitre added a second in the 33rd minute, his failure to cut out goalkeeper Jonas Lossl's kick allowing Depoitre to round De Gea and score.
United substitute Marcus Rashford headed in Romelu Lukaku's cross with 12 minutes remaining, but Huddersfield held firm for a famous win.
Pep Guardiola's City have won their last 11 games in all competitions, equalling the club record, and have scored 20 goals in their last four home matches in the league.
Argentina striker Aguero netted from the spot on the half hour after Burnley goalkeeper Nick Pope was contentiously adjudged to have fouled Bernardo Silva.
- Batshuayi lifts Chelsea -
Second-half goals from Nicolas Otamendi and Leroy Sane completed victory.
"I'm so happy to continue our winning mentality," said Guardiola.
"Of course it is not easy to win 11 in a row, so it's good."
Michy Batshuayi came off the bench to inspire Chelsea to a 4-2 home win over Watford that lifted some of the pressure on manager Antonio Conte.
Beaten in their two previous league games, Chelsea took a 12th-minute lead when Pedro curled a magnificent effort into the top-left corner.
Goals either side of the interval from Abdoulaye Doucoure and Roberto Pereyra put Marco Silva's hard-working visitors in front.
But Batshuayi headed in a 71st-minute equaliser and after Cesar Azpilicueta put Chelsea in front late on, Batshuayi completed victory in stoppage time.
"The performance was a good performance because to concede the equaliser at the end of the first half and then go down in the first part of the second half, our confidence in that moment was low," said Conte.
"But my players showed me that we have the attitude to fight and change the situation and get a different result."
After the sacking of Craig Shakespeare, Michael Appleton begin his stint as Leicester City caretaker manager with a 2-1 win at Swansea City.
A Federico Fernandez own goal and a Shinji Okazaki effort put Leicester 2-0 up before Alfie Mawson replied for Swansea.
Junior Stanislas teed up Andrew Surman and scored a penalty to give Bournemouth a 2-1 victory at Stoke City, who reduced the deficit through Mame Biram Diouf.
Mikel Merino's late header earned Newcastle United a 1-0 home win over bottom club Crystal Palace.
A staggering 70-yard solo goal by Sofiane Boufal in the 85th minute brought Southampton a 1-0 victory at home to West Bromwich Albion.