The absence of Eden Hazard and N'Golo Kante hurt Chelsea's cohesion but the reality was that City looked every inch the side who coasted to the Premier League title last season, and this performance has fired a considerable shot across the bows of their presumed title rivals in the upcoming season.
They will report on Monday and Sarri added: "It's a long way we have to work".
One of Chelsea's most consistent performers in Azpilicueta could not be overlooked, so he takes up the position at left-back despite largely featuring on the right side of defence - but he's that good he can cover nearly all positions across the back line. If City looked more polished than their opposition it's because they are.
"Our preseason until now has been insane, " Chelsea manager Maurizio Sarri said.
The heat that beat down on the players all afternoon at the national stadium in London will now settle on 63-year-old Sarri as he looks to spark an immediate improvement in their Premier League opener at Huddersfield Town next week.
John Stones gained possession inside his own half, Ilkay Gundogan advanced with the ball and Bernardo Silva then threaded a pass through to Aguero, who netted his 201st goal. "But he arrived so sharp, so good", Guardiola told a news conference. "With him and Gabriel [Jesus] we are good in that position". The central midfielder seemed perturbed by the imposing figures of Bernando Silva and Phil Foden, getting caught in possession by the City stalwarts.
Kompany has been named on the bench by boss Pep Guardiola - just weeks after helping Belgium to a third-placed finish at the World Cup. It's unclear if they will play for Chelsea again, with the duo linked with moves to Real Madrid. "I'm not interested in the agent, I want to hear if Courtois tomorrow will say the same", Sarri said.
"I have no reaction on the agent".
"We don't have to think too much about defending the title. I have [nothing] to answer to the agent".
Traditional kickoff to England season features 2017/2018 FA Cup Winners Chelsea facing runaway Premier League champions Manchester City. The summer trading period for most European leagues still closes on August 31 as usual. Influential talisman and ex-Chelsea player, Kevin de Bruyne, will not figure in midfield so soon after his return from the World Cup and the inexperienced Lukas Nmecha may well be given at least some time up front.