Manchester City has won 4-0 at West Bromwich Albion to end Pep Guardiola's worst run as a manager and stay on top of the Premier League table.Yet his old rival Jose Mourinho's woes continued as Manchester United's manager was sent to the stands and Ander Herrera shown the red card in a goalless draw with Burnley at Old Trafford.
Toothless United, with one goal in four games and a solitary win in seven, was left to see the other big guns with title aspirations pull away as City, Arsenal and Liverpool all struck four goals away from home.
There were also doubles all round at the top as Sergio Aguero and Ilkay Gundogan scored twice each for City while Alexis Sanchez and Olivier Giroud also struck braces for Arsenal, 4-1 winners at Sunderland.
Liverpool maintained its challenge with a thrilling 4-2 win at Crystal Palace, which meant the three teams that started the day on top remain locked on 23 points, with City leading on goal difference ahead of second-placed Arsenal.
The trio opened a three-point lead over Tottenham Hotspur, who lost ground after their 1-1 draw with champions Leicester City.
Guardiola was all smiles after his first win in seven games and was full of praise for Aguero, the key striker whose future at City had been questioned after he was dropped for City's Champions League game at Barcelona.
Leicester earned its first away point this season as Ahmed Musa equalised in the 48th minute after Vincent Janssen's first Premier League goal, from the penalty spot, had put Spurs ahead just before the break.
A superb solo goal from Gaston Ramirez helped Middlesbrough to get its first home league win of the season, 2-0 over Bournemouth.
Picking up the ball inside his own half, the Uruguayan forced his way into the Bournemouth area before cutting back inside a defender and scoring.
Hull City remains in the relegation zone after Michael Dawson conceded a late own goal to see the visitors lose 1-0 at Watford.