It was an improved performance from Chelsea against Manchester City, but it wasn't enough for the Blues to earn a point against the current Premier League champions. Riyad Mahrez's tap-in from Jack Grealish's cross was enough to separate the teams despite a late push from the Blues to find an equaliser.
Graham Potter's side had the better of the opening period before half-time saw Pep Guardiola replace Joao Cancelo and Kyle Walker with Manuel Akanji and Rico Lewis. Those changes helped the Citizens establish themselves and exert plenty of pressure on the team, which ultimately paid off.
While there will be a degree of frustration, it was outing that felt a step in the right direction that was very much not present against Nottingham Forest. football.london takes a look at what we learned across the course of the 90 minutes.