There's a lengthy delay as Mark Noble receives treatment for a nasty whack on the knee from Daniel Amartey. That looked dangerously high by the Leicester man and he is rightly shown a yellow card.

As it stands, Leicester are six points above the relegation zone. West Ham have gone from 11th to 13th. Will it stay like that?

We're back under way.

John Bennett
BBC World Service

Three Premier League players have been named in Algeria's 23-man squad for the Africa Cup of Nations.

But there's good news for West Ham United. Their attacking midfielder Sofiane Feghouli - who was expected to be picked - has been left out.

The three selected England-based players are Riyad Mahrez and Islam Slimani from Leicester City, as well as Watford’s Adlene Guediora.

This is a cracker. Leicester deservedly lead but West Ham are far from out of it.

Image source, PA

You can't take your eyes off this.

Angelo Ogbonna is booked for a foul just outside his area on Demarai Gray. Up steps Riyad Mahrez and his free-kick is kept out at full stretch by Darren Randolph.

Drama at both ends.

Havard Nordtveit denies Islam Slimani a second goal with a crucial challenge following Marc Albrighton's cross.

West Ham counter, Robert Huth is booked for a foul on Dimitri Payet, who picks himself up and forces Kasper Schmeichel into a save from the set-piece.

Image source, PA

How did that stay out?

West Ham are on top for the first time and Michail Antonio cracks an effort against Kasper Schmeichel's bar.

Leicester, all of a sudden, want the half-time whistle.

Incredible scenes inside the Leicester penalty area. Kasper Schmeichel uses his legs to keep out Dimitri Payet's low angled attempt and the rebound just won't fall for Andre Ayew. Much more promising from the Hammers.

No bookings so far but Winston Reid can count himself fortunate to avoid a yellow card after hacking at Riyad Mahrez's heels. Moments later Daniel Amartey clatters into Dimitri Payet. How long until Anthony Taylor's patience snaps.

Danny Drinkwater is loving this. His driving midfield runs are causing West Ham problems. He was also involved in the move for the goal. This must be the best Leicester have played for some time.

Image source, Reuters

West Ham have hardly threatened as we reach the half-hour mark. They've actually had more shots than Leicester but the Hammers are powder-puff. It's just not happening for them.

Riyad Mahrez certainly looks fresher after his unexpected Boxing Day rest. He's chasing absolutely everything. Marc Albrighton's crosses are causing the visitors major problems while Islam Slimani is at his dangerous best.

Image source, .

An excellent goal from Leicester which started with Riyad Mahrez winning possession and finished with Islam Slimani expertly steering home Marc Albrighton's pinpoint cross.

Trouble is brewing for West Ham.

Not only are they behind but Andre Ayew appears to be gesturing at his own manager Slaven Bilic. Ayew appears unhappy and is waving his arms around. He's hardly been in this game.

Alex Bruce
Hull City defender on Final Score

That was a classic striker's finish, headed back across the keeper. Textbook from Islam Slimani.

Another excellent Leicester move almost results in the breakthrough. It's all about Demarai Gray's pace as he times his run to perfection before getting behind the Hammers defence and delivering a cross which is just over the head of Riyad Mahrez.

Lots of noise from the home fans. They'll be pleased with what they have seen. Leicester have won just four league games in 2016-17, but they're up for this.

Image source, Reuters

Seven shots already and we have not even reached 15 minutes.

First serious chance for the Hammers.

Wes Morgan just manages to get his head to Aaron Cresswell's cross but the ball falls invitingly for Michail Antonio, who can't keep his shot down.

This is developing into a cracking game already.