Ten-man Chelsea held on for a 1-1 draw against Liverpool at Anfield on Saturday after defender Reece James was sent off just before half-time.
Chelsea had taken the lead against the run of play when Kai Havertz met a James corner at the near post and his glancing header looped into the far corner past the helpless Alisson Becker.
But on the stroke of half-time, Liverpool drew level in controversial circumstances when, after a review of the pitch-side monitor, referee Anthony Taylor ruled that James had handled on the line as he kept out a Sadio Mane effort and awarded a penalty and sent off the Chelsea fullback.
The images showed the ball had struck James’ thigh before bouncing up against his arm and while Chelsea felt hard done by, Mohamed Salah kept calm amid the protests to drive home the spot kick.
Earlier, City made light work of a hapless 10-man Arsenal, beating them 5-0, a result that means the Gunners have lost their opening three league games of a season for the first time since 1954-55.
Arsenal coach Mikel Arteta, back at the Etihad Stadium where he worked as an assistant between 2016 and 2019, watched in horror as his team fell apart early on, with Ilkay Gundogan and Ferran Torres giving City a 2-0 lead inside 12 minutes.
The visitors remained masters of their own chaotic downfall as Granit Xhaka inexplicably got himself sent off for a two-footed lunge in the 35th minute.
City could then afford to take their foot off the gas but the goals still flowed as British recording signing Jack Grealish set up Gabriel Jesus for City’s third just before half-time.
Rodri added a fourth early in the second half, before Torres scored his second late on to complete a miserable afternoon for Arteta and his side.
Another loss means Arsenal are without a point, or even a goal, from their three games so far this season.