Switzerland's Alisha Lehmann has space to shoot on the edge of the box but fires just wide. West Ham are turning the screw...

The Hammers' first change sees the Czech Republic's Katerina Svitkova come off, with France's Kenza Dali coming on instead.

Canada's Adriana Leon does well on the edge of the box for the hosts and clips an effort just over the crossbar. Worth a go from there.

How long until we see both sides start to make some changes?

The Hammers are bidding for their first home league victory of the season.

Neither side has been able to unlock their opposing defence so far in this second half. It remains fiercely competitive, and a bit scrappy, but both sides are searching and probing.

Image source, Rex Features

Brighton's best chance might come for a set piece, but their latest corner is headed clear at the near post by the towering Emily van Egmond for West Ham. Not much gets past her!

A good passing move from the hosts gives Adriana Leon a half chance, inside the area, but she can't quite get her shot away in the end. Brighton had players back, covering.

The game's still being played at a good pace. Just like in the first half, there's very little patient passing of the ball around the back - both teams are keen to get forward quickly.

So, 45 minutes to go. Can either of these teams find a winner?

It's almost time for the second half in Dagenham.

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Here's a look back at the key moments from yesterday's second city derby, as injury-hit Birmingham claimed their third win of the league campaign.

Right on the dot of 45 minutes, without any stoppage time, the whistle goals and off they go for a breather.

West Ham have had the better chances, but it remains goalless.

Image source, Rex Features

Brighton's Kayleigh Green gets the first booking of the game for bringing down Rachel Daly. No complains about that one.

Against the run of play, the Seagulls have a half shout for a penalty, but then quickly down the other end, straight away, Emily van Egmond fires over from yet another West Ham chance. It's lively.

The longer this half has gone on, the better West Ham have become.

Their latest attack ends with the lively Emily van Egmond placing a shot from range straight at the keeper.

Image source, Rex Features

This is the best chance of the game so far, by a distance. Martha Thomas does so well until the finish, using her good movement to set herself up to shoot from nine yards out, just to the left of centre, but she drags her shot just wide of the far post.

Big opportunity.