Chelsea's woes continued as they lost at home to Aston Villa. Arsenal and Tottenham Hotspur slugged each other to a standstill in an absorbing 2-2 draw in Sunday's big Premier League derby and Liverpool maintained their resurgence to move into second place after a victory over West Ham United.
Brighton and Hove Albion shrugged off the midweek disappointment of losing their first-ever European game to move into third place with victory over Bournemouth.
Sheffield United slumped to the bottom of the table as they suffered a humiliating 8-0 home thrashing by Newcastle United in which eight different Newcastle players scored.
The first north London Premier League derby since 2014 not to feature Harry Kane produced an enthralling contest at The Emirates where the two unbeaten sides went toe-to-toe.
Arsenal twice led, first through Cristian Romero's 26th-minute own goal, and again thanks to Bukayo Saka's penalty early in the second half. But Ange Postecoglou's Tottenham earned a deserved point thanks to Son Heung-min's brace.
"We conceded an unlucky own goal, then a VAR penalty, so it's not like everything was falling in our favour," Postecoglou, whose side remain unbeaten after six league games, told reporters. "Just a real character and resilience the boys showed, a real belief in the kind of team we want to be."
Arsenal, who are also unbeaten, slipped to fifth with 14 points, below fourth-placed Tottenham on goal difference and have an injury concern after record signing Declan Rice went off with a back issue at halftime.
"Today we lacked a certain composure on the ball to be more dominant, get set and get a structure in the game that we needed against a really good Spurs side," manager Mikel Arteta said.
Liverpool moved into second place, two points behind leaders Manchester City, who have a 100% record, after beating West Ham 3-1 -- their fifth successive league win.
West Ham started well but were left to rue some early misses when Mohamed Salah was felled by Nayef Aguerd in the 15th minute and the Egyptian tucked away the penalty.
Jarrod Bowen levelled but Darwin Nunez steered home a superb volley from Alexis Mac Allister's pass midway through the second half and substitute Diogo Jota sealed the points late on.
After last season's slump, Juergen Klopp's side are looking much more like their old selves.
"When we are not playing well we are solid, when we are playing well we are really good," Klopp said. "That's how you can get kind of consistency and that's what we obviously need."