James Ward-Prowse almost helps set up a goal with his first West Ham set-piece. His corner finds Kurt Zouma, whose header is kept out by Rob Sanchez.

Lucas Paqueta is back on now.

Play goes on without Lucas Paqueta for now. He's hobbling on the side.

Thiago Silva heads behind Vladimir Coufal's long throw for a corner.

Paul Robinson
Former England goalkeeper on BBC Radio 5 Live

Michail Antonio is cutting a lonely figure up front.

It'll be a long afternoon for him if his team don't squeeze up.

Oh oh. Lucas Paqueta is rolling on the ground in pain. The West Ham midfielder landed awkwardly after a jump. The physios are on. Well one of them.

Chelsea striker Nicolas Jackson can't make proper contact with a quarter-chance outside the box.

Chelsea's Carney Chukwuemeka gets an early whack but he's OK. Now he swings in a cross but Emerson heads away.

Everton

Everton boss Sean Dyche, speaking to MOTD: "We will study the game tomorrow with the players. It was a tough day in the sense they were better than us. Sometimes that happens. They had more edge to their performance.

"We started OK, really soft goals and that changed the feel of the stadium and the feel of our performance.

"Too many mistakes get punished but overall I won't make any excuses, they were far better than us today.

"That was not good enough, it was way off where we want to be, way of the consistency we need.

"They had just been punished themselves, they reacted and we need to react ourselves. We were miles off it today."

The second of three London derbies this weekend in the Premier League is under way.

The youngest of West Ham's starting XI today is Lucas Paqueta (25 years, 358 days). Eight of Chelsea's starting XI are younger than the Brazilian.

Image source, .

Image source, .

Chelsea have won just five of their last 30 Premier League matches (D11, L14), their fewest victories across a 30-game span in the league since 1987-88.

Their only win in their last 13 Premier League games was a 3-1 victory at Bournemouth in May.

Chelsea

Chelsea manager Mauricio Pochettino speaking to Sky Sports about new signings Moises Caicedo and Romeo Lavia: "It's common sense [that they aren't in the XI] because they arrived late. They didn't train properly in the last few days. Romeo still needs a few days to settle."

On opponents West Ham: "It's difficult because they have a new signing and we didn't know if they'd play with a back four or five.

"It's a very good team, they have very good quality. I think it's going to be tough but we're ready to compete. We want to dominate and win the game."

West Ham United

West Ham boss David Moyes speaking to Sky Sports: "I hope James Ward-Prowse can add some value to what we have got and his quality on the ball is strong.

"He has scored a few goals and if he can do that for us it will help us."

On Chelsea's side today: "I watched them last week and they were really good, quick and sharp and also inventive.

"They are a good side and today we will have to work hard to stop them."

West Ham have lost 11 of their last 16 London derbies in the league, with their only two victories both coming against Fulham last season.

Chelsea are aiming to avoid losing four successive top-flight London derbies for the first time since 1990.

Chelsea's signings of Moises Caicedo and Romeo Lavia have taken their total spending under owner Todd Boehly to more than £850m.

With an average age of 20 years and eight months, their all-new midfield three of Lavia, Caicedo and Enzo Fernandez cost more than £260m and follows the new owners trend of lavish spending on young players over long contracts.

Many are asking how the club can afford to keep buying new players without falling foul of Financial Fair Play rules.

BBC Sport's Tom Mallows has looked at the money spent and the rules in place in order to find out what exactly is going on.

Read more here.

Image source, .

West Ham midfielder Lucas Paqueta is being investigated by the Football Association for potential betting rule breaches.

The 25-year-old, who has been linked with a move to Manchester City, was omitted from Brazil's recent squad "for him to sort out his problems".

The investigation, which is also said to involve world governing body Fifa, is believed to centre around bets placed in Brazil on yellow cards awarded against Paqueta.

He starts today for David Moyes' side.

Never really noticed the word London on West Ham's crest. Has that always been there?

Chris Sutton
BBC football expert

I really feel for West Ham boss David Moyes because of the way the Hammers have gone about their transfer business this summer. Now there is the possibility of losing Lucas Paqueta to Manchester City too, which hardly helps.

Chelsea were very good in the second half against Liverpool last weekend and they will be even better if Moises Caicedo goes straight into their team, to partner Enzo Fernandez in the centre of midfield.

You can see what Mauricio Pochettino is trying to do with Chelsea and they are a better team, with better players, than West Ham. Even though they are still fitting together as a team, that will be reflected in the result.

It's putting the ball in the net that I think could still be Chelsea's biggest problem, especially in the short-term. Nicolas Jackson looks lively up front, but can he step up with the goals they need?

West Ham will sit in and counter, but I am backing Chelsea to have a little bit too much quality.

Sutton's prediction: 1-2

Thanks Gary. That was such an amaaaaaaaaaazing live text you did, you're such a great guy and I'm sooooo grateful for you handing over to me.

Am I overcompensating after forgetting to acknowledge a handover yesterday? Not for me to say.

Right, stick with us for reaction to that game but I'll hand over to my colleague Emlyn Begley to guide you through West Ham versus Chelsea.