Hammers land on enemy territory
The challengers have arrived at their rivals' backyard.
They look raring to go, Jarrod Bowen will be itching to get out there following his goal against Liverpool.
What 11 players will David Moyes pick to do battle for him at the Bridge?
We will find out in just a few minutes!
The Blues' fortress
Stamford Bridge is becoming a tough place to play once again.
Over the last couple of seasons, the old fortress nature of the stadium had withered away - Chelsea began to get beaten at home regularly.
However, in recent weeks, that has changed. The Blues have won eight of their last 10 league matches at the Bridge, losing just one of them.
Pair that with the fact that they have lost just one of their last 17 home league games against West Ham United, today is set up to be a good one for the home side.
That one win for the Hammers did come as recently as 2019 though, so don't rule them out.
Blues arrive home
The Chelsea boys are in the building.
It seems as though Cole Palmer is in a very good mood today going by this photo, which could spell danger for West Ham.
With Palmer not scoring against Tottenham in midweek, he will be desperate to get back on the scoresheet - especially after seeing Erling Haaland score four yesterday.
A big afternoon ahead for him and Chelsea.
West vs East
Local pride is at stake today, as well as European football.
Matches between Chelsea and West Ham regularly serve us a treat, it's a fierce battle between clubs from either side of London.
It feels like there is a little bit more on today's match as both teams are still hopeful for a place in the Europa Conference League.
Chelsea currently sit eighth in the Premier League table on 51 points, just three points behind Manchester United who occupy the final European spot.
West Ham aren't too far behind them, they occupy ninth place at the minute, just two points behind their rivals.
With so much at stake, this one is going to be tasty.
London calling...
Yes, it really is time for another London Derby.
72 hours ago, Stamford Bridge was on its feet to applaud a wonderful Chelsea performance as they beat bitter rivals Tottenham 2-0.
Well, will be back in their seats again today for another big derby match as the Blues take on West Ham.
It might feel like London clubs collide every week, I mean because they do, but this is a big clash.
Both sides are still gunning for Europe and sit one position and two points apart in the table.
One of their European dreams could end today, but whose will it be? Stay with us and find out...
Right, let's get cracking then!