Manchester City slice through Leicester as if they're Christmas cheese and the crackers are out but Riyad Mahrez drags his shot wide.

In the least surprising news of the day, Granit Xhaka has been booked.

The Arsenal man is disciplined for a spat with Max Aarons.

Moments later Przemyslaw Placheta is booked after shoving an opponent.

This is getting tasty.

It's actually 8-8 on shots now as Kiernan Dewsbury-Hall lifts an effort over the bar from the edge of the box.

Ooooh Southampton have got themselves in a spot of bother here! jan Bednarek gives the ball away sloppily on the left-hand side.

Nikola Vlasic runs onto it and drives towards the box, he does have options but he goes for it himself and the shot is parried away by Fraser Forster. The rebound doesn't fall kindly for West Ham and it goes behind for a corner.

Opportunity missed for the Hammers.

It goes from bad to worse for Palace. Two goals down and Wilfried Zaha is now off. He was booked earlier for a foul on Davinson Sanchez and now Zaha is shown a second yellow.

It's a needless one as Sanchez was trying to shield the ball for a throw in, Zaha pushes Sanchez to the floor and Jon Moss shows Zaha a second yellow card, followed by a red.

West Ham clear a Southampton corner but it's only as far as Nathan Redmond, who fires an optimistic volley from 20 yards out, straight at Lukasz Fabianski.

Manchester City are the only team to ever score four first-half goals in a Boxing Day Premier League fixture. They also did so against Hull City in 2008 (a 5-1 win).

A great Kasper Schmeichel stops it being 5-0. Oleksandr Zinchenko plays a lovely ball over the top and Bernardo Silva lays it off first time in the air to Raheem Sterling, whose volley is saved well. Total football.

Declan Rice goes into the book for a bit of a hack on Armando Broja. That means he'll be suspended for West Ham's next game against Watford on Tuesday.

A decent spell for Norwich. Przemsylaw Placheta takes the ball to the edge of the box before shooting but Aaron Ramsdale saves.

Then the Gunners keeper comes charging out of his box to clear as Teemu Pukki looks set to get on the end of a long punt forward.

Liz Tray: Leicester have put out a really poor 11 here. No Fofana, Justin, Evans, Vardy, Pereira, Soyuncu, Daka, Barnes. You feel for them today, they are much better than this.

Andy Johnson: Brendan Rodgers 3rd season blues, concedes too many goals and will probably get sacked.

We'd all be up for Ederson taking a penalty, yeah?

Southampton are really taking their time with their set-pieces, bit naughty.

Nathan Redmond releases Mohamed Elyounoussi on the edge of the box but the finish was lacking some power and it's an easy pick-up for Hammers keeper Lukasz Fabianski.

Chris Bevan
BBC Sport at Etihad Stadium

The Manchester City fans are enjoying themselves now, as you would if your team had gone 4-0 up inside the first half hour.

They've just done the Poznan, followed by a rendition of 'stand up for the champions'. They will no doubt be chanting for Ederson to take their next penalty, if they get one. We'd better ask Youri Tielemans what his plans are there.

Manchester City are the third side to score two penalties in the opening 25 minutes of a Premier League match, after West Ham v Manchester United in 2011 and Liverpool v Sheffield United in 2007, with the Citizens the first of those three to do so with two different scorers.