Here is that West Ham goal in graphical form. It does not do it justice really - you will have to take it from me that Mauro Zarate's shot was really travelling. Hammers coach Julian Dicks, who could hit a ball himself, would have been proud.

Ian Dennis
BBC Radio 5 live at Upton Park

"The West Ham fans sing "you're getting sacked in the morning" to Jose Mourinho. Will that come back to haunt them?"  

Not much of a response from Chelsea so far. 

By the way, it was Dimitri Payet's corner so he definitely deserves an assist for that West Ham goal after testing Asmir Begovic with the free-kick that led to the corner as well. Ramires got a touch on the ball as it came across, so I am not sure if he will.

A quick glimpse at the man dropped by Jose Mourinho last weekend - Eden Hazard. He has made 14 touches so far, but none of them have been anywhere near the West Ham area. He cannot do any damage when he is this deep.

Clive Allen
BBC Radio 5 live at Upton Park

 "Chelsea's defenders were statue-esque and Mauro Zarate absolutely thumps it past Asmir Begovic. I think the goalkeeper is expecting one of his defenders to cut the cross out and he is unable to make up the ground to get across to save it. The defending was very poor, too many Chelsea defenders just didn't react. It was a fantastic finish, but he had plenty of time and space."

That goal has taken the Hammers up to second in the table, as things stand. Plenty of time for that to change but the Hammers are certainly happy at the moment.

West Ham are still looking to get men forward too, though, and Dimitri Payet wins a free-kick 30 yards out when he is tripped by Cesc Fabregas. This could be dangerous...

Chelsea are looking the more dangerous team at the moment. Diego Costa bundles his way into the area and wins a corner, and then wins the header when the ball comes across... but it skims off his head and flies well wide.

Image source, Getty Images

Chelsea break quickly this time and feed Willian on the right. His cross is aimed for Diego Costa but the Hammers have plenty of men back and James Collins hacks the ball away.

Clive Allen
BBC Radio 5 live at Upton Park

"That was a brilliant chance for Diego Costa, but the volley was high and wide. Chelsea were quick to get the ball forward to him. West Ham seem happy to sit back at the moment."

Chelsea have been patient in possession so far but they have just created their first chance. It falls to Diego Costa, who runs on to a bouncing through-ball but skies his first-time shot a million miles over Adrian's bar.

Clive Allen
BBC Radio 5 live at Upton Park

"Payet is clearly full of confidence if he's shooting from that distance! I like him as a player because he makes West Ham tick. He can always find a clever pass."

Image source, AFP

West Ham have won just one of their past 18 Premier League clashes with Chelsea but, as MOTD commentator Jonathan Pearce has just pointed out, they will be full of confidence that they can improve that record today.

In-form Hammers midfielder Dimitri Payet has just had the first shot of the game, bending a shot high over the bar from about 30 yards out.

It's been scrappy first couple of minutes, with the only notable incident a trip by Manuel Lanzini on Willian as Chelsea looked to break quickly. Ref Jon Moss keeps his cards in his pocket though.

It was raining almost right up until kick-off and the ball is zipping around the wet turf.

Image source, Getty Images

Chelsea get us under way.

Time for a few pre-match high-fives from the Chelsea players, and a warm pre-match handshake between Blues boss Jose Mourinho and Hammers manager Slaven Bilic.

England boss Roy Hodgson is here too, and this game is about to get started...

Does Jose Mourinho want to be sacked at Chelsea? Our BBC Radio 5 live pundits give their views.

Jermaine Jenas says: “When he came back it was a long-term thing. He was thinking of himself as being a "Mr Chelsea".

“It’s the first time we’ve seen him under real pressure and he might not be handling it as some may have thought, but I would not say he is begging for the sack. I think he would just walk.”

Chris Sutton adds: “Who could you get better than Mourinho? He is making some odd decisions but you can’t doubt the man. Carlo Ancelotti is free, but he is not as good as Jose Mourinho.”

Image source, Getty Images