Alice Piper is joined by Sky Sports features editor Peter Smith and football journalist Ron Walker to reflect on another enthralling round of Premier League action…PART 1 | As Manchester City, who were underdogs for the first time under Pep Guardiola, win at Chelsea, we assess whether the champions are still the team to beat and where Thomas Tuchel got it wrong.PART 2 | As Chelsea leave the door ajar, we assess a testing weekend for Manchester United and Liverpool as both title hopefuls fail to seize the advantage against Aston Villa and Brentford. PART 3 | Arsenal’s resounding North London derby victory drew an emphatic line under their testing start to the season but have the Gunners turned the corner, and what’s going on at Tottenham?