It’s all Manchester at the top of the Premier League.
United thrashed Everton 4-0 while City hit Watford for six without reply.
United and City have an identical record, both on 13 points after five games.
At Old Trafford, it was a tale of two old boys.
Romelu Lukaku, who left Everton to join United for £75 million in July, scored against his former employers while Wayne Rooney, back at his boyhood love after a distinguished career at United, drew a blank.
Antonio Valencia smashed a shot past Jordan Pickford from 25 yards to put Jose Mourinho’s side into an early lead.
Then, late on, Everton got the old 1-2-3 treatment.
Lukaku found Henrikh Mkhitaryan to steer home before the Belgium striker bundled in the third himself at the far post, and substitute Anthony Martial added a stoppage-time penalty.
Confirmation that United are going to be right up there after failing to challenge since Sir Alex Ferguson stood down.
But for Everton another big setback after a summer spending spree which is yet to pay off.
The Toffees have not scored a goal in any of four successive defeats in all competitions. They currently lie in the relegation places, third from bottom.
Manchester City’s imperious form continues – inflicting the home side’s heaviest ever top flight defeat.
Sergio Aguero scored a hat-trick and there were goals from Gabriel Jesus, Nicolas Otamendi and a Raheem Sterling penalty.
That sent Pep Guardiola’s men top and pundits who tipped them for the title must already be savouring cleaning up.
It was sublime football, another clean sheet and Watford had no answer to it.
An excellent few days coming on the back of a 4-0 win at Feyenoord in the Champions League.
“It was so good,” said Pep. “The way we played as a team, we are so happy.
“I was lucky to manage Barcelona with many outstanding performances but this week has been a lot of goals. We have found our game.”
Was this the same Arsenal? Surely not.
A team full of steel and discipline as well as attacking intent … yes, it was the very same Emirates side who sometimes look as if they have never met each other.
Held Chelsea 0-0 at Stamford Bridge and probably had the best of the chances.
Aaron Ramsey struck a post and Alexandre Lacazette fired the rebound over an open goal.
Indeed, so frustrated the home team that David Luiz was shown a straight red card for a reckless challenge on Kolasinac late on.
Liverpool’s Achilles Heel emerged yet again – no, defensive frailty is taken for granted, but an inability to beat so-called lesser teams.
Held 1-1 by Burnley at Anfield.
Had it been a boxing match it would have been stopped by half-time, so dominant were the home side.
The Reds racked up 35 efforts at goal to the Clarets’ five, but could have lost had Joel Matip not cleared Ben Mee’s free header off the line late on.
Burnley went ahead through Scott Arfield. Mohamed Salah equalised.
Former Chelsea starlet Dominic Solanke’s instinctive side-foot volley against the bar was as close as Liverpool came to a winner.