Sandwiched between those two heavy losses was a 5-0 win over Huddersfield at Stamford Bridge last weekend and Sarri revealed the discrepancy between home and away results has left him bewildered.
Aguero should even have had more, having missed a sitter in the early stages and headed against bar on a dismal afternoon for Chelsea, whose manager Maurizio Sarri headed straight down the tunnel at full-time.
Insisting he was happy for Vardy to take the penalty, Puel said: "I gave him the opportunity".
"Today, I didn't see my football", he said after the humiliating defeat.
The City manager stopped short of comparing his current team with his Barcelona side that won six trophies in his first season in charge, but he offered an interesting insight into the mindset of the club's players and staff. "At the beginning, it worked, so now, we need only to understand the reason why, at the moment, it isn't working". We need to understand the reason, it's not easy.
"Players have got a lot more strength, power and say in what goes on with the manager and the assistants". After three games in a week - Arsenal, especially Goodison Park and playing the way we played with this intensity and the desire and patience to find the right moment, the players were outstanding.
"At the beginning we played better away than at home, now we play better at home, so something has changed and I am not able to see the reason, so I have to work for this", Sarri continued.
The defeat was Chelsea's worst since their 7-0 loss to Nottingham Forest in 1991 and will raise serious questions about the direction the team is going in under Italian Sarri as they slipped to sixth place on 50 points, a point off the top four.
Just as Leicester pressed for an equalizer, Son Heung-min scored a breakaway goal, racing clear from the halfway line and converting his 15th of the campaign in the first minute of stoppage time. "Because they are professionals and I know they will react and it will be tougher". He wants to try to do that.
"It is hard to describe our performance, it's hard also to understand". Mine was hard too.
"We have a squad full of great players with a lot of quality, a lot of young players and experienced ones too".
"I think the next one is always the most important".
"After Newcastle everybody was put in front of the mirror and we talked to each other and we accepted the reality and moved forward". They win that and they are leaders, with us behind.