Chelsea have dismantled London rivals Tottenham 3-0 and Manchester United earned a dramatic 2-1 win at West Ham as the two Premier League heavyweights joined a third, Liverpool, at the top of the table.
European champions Chelsea's dominant second-half performance at Spurs on Sunday, with goals by Thiago Silva, the inspirational N'Golo Kante and Antonio Rudiger, saw the unbeaten Blues move on to 13 points.
Earlier, just a few miles away across the capital at the London Stadium, Jesse Lingard had scored a stunning late goal before David de Gea saved a stoppage-time penalty to enable Man Utd to snatch the spoils and also move on to 13.
It was an emotional afternoon at the Tottenham Hotspur Stadium, as the two sides for whom Jimmy Greaves scored most of his goals paid tribute to their late, great striking star who has died at the age of 81.
After the hosts had shaded the first half, Chelsea took complete control after the break to send out an ominous warning in the title race.
Thiago's header put Chelsea ahead in the 49th minute, sub Kante's deflected shot beat Hugo Lloris shortly after and Rudiger's late strike was enough to give Chelsea an identical record to Liverpool, with both sides on 13 points from five games, both having scored 12 goals and conceded just one.
Chelsea boss Thomas Tuchel, who'd brought on Kante after the break, reckoned the little powerhouse had made the difference.
"Top player, if you have N'Golo you have something everyone is looking for," Tuchel said. "You have everything you need in midfield, you have work rate, intensity, ball wins, skilful play, dribbles, half-field drives and even a goal.
"I see this every day in training and it is hard to believe how good he is. He is a unique guy, there are no more words from me. N'Golo is N'Golo, he is fantastic."
Earlier, in two cruel hammer blows for the Hammers, Man Utd's sub Lingard had hit a thumping shot into the top corner in the 89th minute against his former club only for the home side to spurn a penalty opportunity moments later after a handball by defender Luke Shaw.
Mark Noble stepped up to take the penalty immediately after coming off the bench but de Gea guessed correctly and dived to turn his poor spot-kick away.
West Ham had gone ahead on the half-hour mark with a deflected strike from Said Benrahma but the visitors responded five minutes later, Cristiano Ronaldo heading a Bruno Fernandes cross at Lukasz Fabianksi and following up to tap the ball into the net.
It was Ronaldo's fourth goal in three games after netting twice on his second debut for the club against Newcastle United and once in the 2-1 Champions League defeat at Young Boys on Tuesday.
In Sunday's other Premier League match, Brighton maintained their impressive start to the season with a hard-fought 2-1 win over Leicester at the Amex Stadium to move to fourth in the table, a point behind the top three, thanks to a penalty from Neal Maupay and header from Danny Welbeck.
Jamie Vardy pulled one back in the 61st with his 150th goal for Leicester on his 250th Premier League appearance.
Australian Associated Press