It was fair to say Chelsea supporters were not the most confident as they saw their team walk out of the Goodison Park tunnel to a deafening reception. The Blues had lost in all of their last three trips to Everton and the general feeling on social media was that of pessimism.
This was also down to Chelsea being unable to beat an out-of-sorts Manchester United team during the week, but their recent experiences of Goodison have not been the best. This was a special day for Everton as well, to make things even more difficult for the visitors.
The Toffees had just seen their relegation rivals Burnley defeat Watford less than 24 hours before, making their clash against Chelsea even more crucial. The atmosphere around Goodison was truly ear-piercing and it looked as if that got to some of the Blues' players on the day.
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It was a cagey and scrappy first-half with both sides struggling to create anything of note. After the break, however, Everton forced an error from the Chelsea defence and took advantage through Richarlison's low strike.
The Blues then had three golden opportunities, firstly through Mason Mount, who hit both posts, then Cesar Azpilicueta's follow-up shot that was denied by Jordan Pickford. Antonio Rudiger had a glorious chance moments later, but Pickford stood firm once again to deny a Chelsea equaliser.
That's the way it stayed. Chelsea suffered a rare defeat on the road and it was exactly what Thomas Tuchel's team deserved. With all of this being said, football.london takes a look at some of the moments in the match that you may have missed...
Lampard embraces Chelsea stars
In the midst of all of the Everton celebrations after the full-time whistle, you'd be forgiven for missing Frank Lampard embracing some of his former Chelsea players. The former Blues boss, who left the club in January 2021, was quick to go up to his old players and embrace them.
Most notably perhaps, Lampard went up to Antonio Rudiger and shook the defender's hand. Lampard barely played Rudiger during his time as Chelsea boss, only for the German to becoming a regular under Tuchel.
There were rumours of discontent between Lampard and Rudiger, and if that was true or not, the two shook hands at the end of the game. There's clearly a respect there. Lampard also embraced Kai Havertz, Mason Mount, Christian Pulisic and Thiago Silva, before continuing to celebrate with the jubilant Everton fans.
Chelsea's poor trend continues
Chelsea have made 14 errors leading to goals in the Premier League since the start of the 2020/21 season. Only Everton, ironically, have made more with 15 mistakes.
Cesar Azpilicueta was the latest Blues man to gift the opposition a goal. The Spaniard was caught in possession by Richarlison, who stole the ball off the Chelsea captain and slotted it past Edouard Mendy.
It was only a few days ago that N'Golo Kante was dispossessed before Manchester United equalised through Cristiano Ronaldo. This needs to stop and Tuchel knows it.
"What can I do?" the Chelsea head coach asked after the game. "The ball is free, then give a goal away. It is the worst thing that can happen to you in this atmosphere and situation. It happens too often and we struggle to play without big mistake. That's why we struggle to have results."
Everton's aggressive game-plan turns into masterclass
It was obvious what sort of Everton side we would see go head-to-head with Chelsea. An aggressive one, ready to pounce on every loose ball to try and frustrate the visitors.
We saw that, predictably. This led to plenty of Chelsea players, most notably Havertz and Azpilicueta becoming increasingly frustrated, when they needed more than ever to keep their heads.
It's easier said than done, of course, with some of Everton's tactics questionable at times. Tuchel, though, will have known the type of team his players were going to face and surely would have addressed this in their pre-match chat.
Lampard, who coached the majority of Chelsea players at Goodison on Sunday, admitted after the game that he is well aware that some of them are known to become frustrated - signifying that his game-plan turned into a masterclass. He said: "I've been here with Chelsea and some of the players get frustrated. I didn't know how to play Chelsea. Of course, I have a great knowledge of the individuals."