"Lately we have scored lots of goals in the first five minutes, which is very good".
The Blues have now slipped to sixth in the Premier League table, below Arsenal on goal difference.
His treble also equals Alan Shearer's record of eleven Premier League career hat-tricks with his third of the current season.
"It is hard to explain what happened. The only thing I can say to the fans is sorry, because it's not acceptable, and I feel sorry for all of them".
"We are conceding a lot of goals and we can not accept that".
Chelsea lack an on-field leader like John Terry and Blues legend Ron "Chopper" Harris is anxious that it could cost Maurizio Sarri his job.
"I would think that when you think what [Kante] did a year ago, he was head and shoulders ahead of anyone else", Harris said. After publicly acknowledging he is rarely in contact with owner Roman Abramovich, it would be a surprise if Sarri goes the week without a call from the man in charge at Stamford Bridge.
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"But looking at him playing at the moment, it's like me a defender who never crossed the halfway line playing as a striker".
Pep Guardiola had described this match as a "final" for his side given that Chelsea had a week to prepare, while City ground out a 2-0 win at Everton on Wednesday. They have since lost seven out of 21 in all competitions.
Guardiola knew his tactics would take time to register but there was a discernable plan, he knew he would get the signings he wanted and retain his best players.
"But people don't understand how hard it is to do something - my first year was hard too".
"It is hard to describe our performance, it's hard also to understand".
Pochettino's side took the lead through Davinson Sanchez's first goal for the club, but they were indebted to Hugo Lloris for saving Jamie Vardy's spot-kick after the interval at Wembley.
"They beat us at Stamford Bridge and against Napoli [Sarri's old club] last season they were tight games - in moments of those games, they were better than us".
Against Chelsea, City were able to build on their positive start, adding three more goals to put the result beyond doubt inside the opening 25 minutes.