It's time for a double-change for Chelsea.

Erin Cuthbert and Catarina Macario replace Jelena Cankovic and Sjoeke Nusken.

That's going to make things more difficult for West Ham.

Riko Ueki won't be a fan of the offside flag.

She's through on goal again, this time rounding Hannah Hampton, but the flag is up.

Once again, the replays look like she's onside.

Image source, Getty Images

That's lovely from Lauren James.

She whips an excellent cross towards the back post, but Aggie Beever-Jones' header goes over the bar.

Image source, Reuters

A big 45 minutes coming up.

Will Chelsea see out this one without West Ham finding a way back?

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Chelsea have stopped the opposition from scoring a first-half goal in 10 of their 17 games, only Manchester City (13) and Liverpool (11) have done this more often in the Women's Super League this season.

It's been a very even first half.

West Ham had the better of the expected goals, too. They had 1.20 to Chelsea's 0.24.

Image source, Opta

West Ham have lost five of their seven games in which they've been trailing at half-time this season.

The good news? They came from behind to beat Arsenal, and they came from behind to draw with Manchester United.

That means that in the past two games in which they've been behind at the break, they're undefeated.

Chelsea lead at the break.

Image source, Getty Images

Johanna Rytting Kaneryd brings down Honoka Hayashi, but she escapes without a booking and West Ham get a free-kick.

They can't capitalise on the chance, though, and it's immediately cleared by Chelsea.

Oh my. Another huge miss for West Ham.

Viviane Asseyi is slipped through by Honoka Hayashi. Asseyi is only a few yards from goal but blasts over the crossbar.

She has to do better from there.

Chelsea have a slight penalty shout as Aggie Beever-Jones goes down in a tussle with Anouk Denton inside the box.

The referee doesn't think there's anything in it, though.

Image source, Getty Images

West Ham have the momentum now.

Viviane Asseyi tries to send a delivery into the Chelsea box but it's cleared by Jess Carter at the near post.

It's been an impressive half from Riko Ueki.

She's had one goal incorrectly ruled out for offside and was just inches away from scoring with an incredible long-range effort.

My word, what a goal that would have been.

Riko Ueki is about 30 yards out and spins a shot towards goal.

It looks like she's beaten Hannah Hampton, but the ball cannons off the crossbar.

Image source, Getty Images

Gilly Flaherty
Former Chelsea and West Ham defender on Sky Sports

Lauren James, Aggie Beever-Jones and Sjoeke Nusken are combining and moving so well up top in attack for Chelsea.

West Ham are struggling to keep track of them, when to go with the runner when to pass them on.

Image source, Getty Images

West Ham have had the better chances in this one.

They've produced 0.75 expected goals to Chelsea's 0.21.

Can they find a way to get back into the game?

Brighton come from behind to beat Leicester.

A brilliant contest at the King Power.

Game of the weekend so far without doubt.

Image source, Getty Images

Aston Villa's game at home to Arsenal at Villa park, which was due to kick off at 18:45 GMT, has been delayed by 45 minutes due to travel disruption impacting Arsenal's journey.

Image source, Getty Images

Sensational from Sophie Baggaley who has probably just ensured her side will leave with three points.

Jutta Rantala fires towards the roof of the net but Baggaley tips it behind for a corner.

Absolutely superb from the Brighton keeper.

Image source, Getty Images