The foundations are being laid for one of the English Premier League's most exhilarating and competitive title races.
Hazard scored a penalty in the 81st minute after Bamba brought down Willian in the area, and Willian rounded off a satisfying day for Chelsea, who moved top on goal difference, with a dipping shot from outside the area. Sarri has been candid about Chelsea's defensive frailties, and those shortcomings were exposed in full when Bamba handed the visitors the shock lead.
And the defending champions are in the slipstream.
"You can score 40 goals", Sarri recalled telling the winger.
Chelsea grabbed a vital second goal just before half-time and it was that man Hazard again. "I am very happy with my team, to be here and play in the Premier League".
How much did Giroud play in Hazard's good game?
"I thought Hazard was one of the best players in Europe but now I change my mind because maybe he is the best", Sarri said after Hazard's man-of-the-match performance. I'm talking about one week ago. Maybe he is the best.
"I think he can score 30 or 35 goals this season", said Sarri. Liverpool invested more than $200 million in new talent.
Former leaders Liverpool claimed a 2-1 victory over Tottenham Hotspur at Wembley Stadium on Saturday with goals by Georginio Wijnaldum and Roberto Firmino.
But Liverpool was far more sprightly and risky on the ball in north London, while Tottenham - particularly striker Harry Kane - was lethargic.
Spurs paid a heavy price for the absence of captain Hugo Lloris through injury as stand-in goalkeeper Michel Vorm flapped at a corner six minutes before the break and Georginio Wijnaldum looped a header over the line before Vorm could scramble clear. Cardiff went into the worldwide break with a 3-2 loss to Arsenal, a game that earned the Gunners their second win of the season.
Mourinho wasn't completely satisfied. The three-goal outing put Hazard on five goals in three starts this season, marking an excellent start under his new attacking manager.
"It has been frustrating and a little bit of a nightmare to be honest". "We gave them the chance to be more aggressive".
"(He) just wants us to play and to find space between the lines so then Jorginho, Mateo Kovacic, Cesc Fabregas can find us", said Hazard.
City's Silvas combined for the second.