West Ham make a change of their own while play is paused. Emma Harries replaces Jess Ziu.

A second injury worry for Manchester City as goalkeeper Khiara Keating sits on the turf and waves for medical assistance.

A reminder that their second and third choice keepers Sandy MacIver and Ellie Roebuck are already ruled out of action long term.

We have a short break in play, as one of the pieces of technology the referee carries around has broken or come loose or something.

Arsenal will have a free kick in a decent attacking position when we resume.

Gareth Taylor turns to his bench for a second time.

Laura Blinkilde-Brown comes on to replace Laura Coombs in the middle.

Oh another golden chance for West Ham!

Riko Ueki breaks in behind the Manchester City back line and is one on one with Khiara Keating.

Ueki makes an angle for the shot before cutting a finish back across goal, but she is denied by a smart stop from Keating.

Image source, Getty Images

A double change for both teams.

Deanne Rose replaced by Shannon O'Brien, and CJ Bott comes off for Asmita Ale.

Cloe Lacasse replaces Caitlin Foord, while Alessia Russo makes way for Vivianne Miedema who gets a great response on her return from injury.

Close!

A great move in the right channel as Chloe Kelly executes a neat reverse pass to Mary Fowler.

She cuts past a defender and pulls the ball back but Laura Coombs' shot is blocked well by the West Ham defence and bounces behind.

Adam Millington
BBC Sport at Joie Stadium

Khadija Shaw is out on crutches and has a protective boot on her foot as she heads to sit on the bench with her teammates.

Alessis Russo is up to nine WSL goals this season, putting her joint fourth in the overall scoring standings. Given she has not been a guaranteed starter, that is a very decent return.

Beth Mead meanwhile is up to eight league goals.

Image source, Getty Images

TV coverage has just shown Bunny Shaw re-appear on the Manchester City bench on crutches and with a moon boot on her injured foot.

Not a sight anyone wants to see. We wish her a speedy recovery.

First caution of the game goes to Risa Shimizu after she cynically hauls Lauren Hemp to the floor in midfield.

Man City boss Gareth Taylor spoke about the importance of goal difference in this title race in recent weeks.

Three goals so far today have taken their tally one ahead of Chelsea for now.

Although City can hardly afford to be as sloppy as they have been at the back today if they are to retain that narrow lead.

Leicester have mostly defended well, but there were some really tired looking tackles as Arsenal burst forward to score there.

The Gunners may look to make hay in the final 15 minutes now.

Credit to West Ham, it would have been easy for them to sit off and guard their penalty area after that difficult first half.

But Rehanna Skinner has sent her side out to attack Manchester City in this second half and they can count themselves unlucky that they have not yet grabbed a goal back.

Lize Kop is down again, getting some attention to her leg. She did get clattered earlier this half, so we can give her the benefit of the doubt.

Both sides take the chance to refuel and refresh on the sidelines.

The attendance has been announced as 42,820.

Another great turnout for Arsenal at the Emirates Stadium.

Rachel Brown-Finnis
Ex-England goalkeeper on BBC Red Button

That's just a reminder for Manchester City that they can't give up easy possession of the ball. It's a let-off for City yet again. This time it's City that need to wake up in the opening moments'

Two shots off the bar in as many minutes for West Ham!

Riko Ueki wins the ball back from Jess Park in the middle before driving forward and laying it off to Viviane Asseyi.

Asseyi takes aim and cannons a shot off the woodwork, with Khiara Keating left stranded.

City lose the ball again soon after and Riko Ueki takes the chance to also shoot from distance, with her shot bouncing off the top of the bar on its way behind.