Well, that was about as perfect a response to last week's game as Chelsea could have hoped for.
Enzo Maresca's side lost the talismanic Cole Palmer in the warm-up and then found themselves one-nil down early on through a Lucas Paqueta wonderstrike, but that didn't matter.
The West Londoners found themselves level within nine minutes, up 3-1 by halftime and then 5-1 winners at full-time, potentially sealing the fate of their former manager in just the second week of the Premier League season.
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There were outstanding performances all across the pitch for the Blues, but two players in particular stood out, including Estêvão.
Estêvão's standout performance
With Palmer pulling out of the game before a ball was kicked, the young Estêvão was given the daunting task of starting his first Premier League game, although from the way he played, you'd have assumed he was a seasoned veteran.
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The 18-year-old wonderkid was utterly sensational for the Blues, playing pinpoint perfect passes one minute and then beating a couple of West Ham players on the dribble the next.
The Brazilian dynamo might not have scored a goal on the night, but he was involved in almost everything good about the West Londoners' play and has surely cemented his place in the side for next week.
It might sound like hyperbole, but we aren't the only ones who were blown away by the teenager, as the Express' Fraser Watson gave him an 8/10 match rating at full-time, and Sky Sports awarded him the Man of the Match award.
His statistics from the game more than back up the rave reviews as well.
Estêvão's game in numbers
Minutes
Expected Goals
Goals
Expected Assists
Assists
Touches
Key Passes
Shots on Target
Dribbles (Successful)
Tackles
All Stats via Sofascore
In his 77 minutes of action, the former Palmeiras gem produced a combined expected goal and assist figure of 0.94, provided one assist, took 41 touches, played one key pass, created one big chance, took one shot on target, completed two-thirds of his dribbles and made three tackles.
In all, Estêvão's place in the team is surely secure for next week, which should also be the case for one of his teammates who was just as brilliant.
The Chelsea star who is now completely undroppable
Now, if we are being honest, there were several starters last night who have a valid case for now being practically undroppable.
Still, for our money, the pick of the bunch, alongside Estêvão, was Joao Pedro.
The Brazilian more than made up for his lacklustre showing against Crystal Palace last week by not only scoring his first Premier League goal for the club, but also picking up not one but two assists.
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Like his younger compatriot, the "exceptional" attacker, as dubbed by pundit Troy Deeney, was involved in pretty much everything great about the Blues' performances last night.
He looked silky on the ball one moment and then powerful the next, leaving the Hammers' midfield and defence utterly helpless and simply unable to stop him.
Watson was just as impressed with the former Brighton & Hove Albion man, awarding him a 9/10 match rating at full-time, describing his performance as a 'quality showing.'
Unsurprisingly, the 23-year-old's statistics make for some wonderful reading and more than justify the vociferous praise.
Pedro's game in numbers
Minutes
Expected Goals
Goals
Expected Assists
Assists
Touches
Key Passes
Crosses (Accurate)
Shots on Target
Big Chances Created
Dribbles (Successful)
Aerial Duels (Won)
Fouls Won
Clearances
Blocked Shots
Tackles
All Stats via Sofascore
In his 96 minutes of action, the Ribeirao Preto-born ace produced a combined expected goals and assists figure of 0.52, scored one goal, provided two assists, took 38 touches, played two key passes, completed 100% of his crosses, created two big chances, took one shot on target, won six of eight aerial duels, made two clearances, blocked one shot and made one tackle.
Ultimately, it was a complete performance from Pedro, and one that should now make him completely undroppable, alongside Estêvão.