Well what a result this would be for West Ham.

They are on course to be just the third side to take points off Chelsea this season alongside Leicester City and Brighton.

But they will be the first ones to take points here at Kingsmeadow in the WSL.

Chloe Morgan
Former Tottenham and Crystal Palace goalkeeper on BBC Radio 5 Sports Extra

Unbelievable. Absolutely unbelievable.

Credit to West Ham.

Image source, PA Media

It's still very close to call as we head into four minutes of stoppage time at Kingsmeadow.

Image source, Getty Images

Viviane Asseyi dispossesses Lucy Bronze with a robust challenge before getting to the byline and crossing it into the middle.

Nathalie Bjorn is there to head it out for Chelsea though.

Substitute Seraina Piubel uses her fresh legs to dart down the wing before she cuts inside several defenders and sees a shot blocked.

Oona Siren tries to pick up the baton but Lucy Bronze uses all her experience, ushering her out of play for a Chelsea goal kick.

Chloe Morgan
Former Tottenham and Crystal Palace goalkeeper on BBC Radio 5 Sports Extra

West Ham can be proud of this performance. It is not a bad performance by any stretch.

They have provided a much more even second half so credit to them.

Image source, Reuters

West Ham are starting to look a little tired now. They've chased the game since the 16th minute and it's showing.

Viviane Asseyi gets into a good position on the left but her cross makes a routine catch for Hannah Hampton.

Sjoeke Nusken makes way after a good afternoon at the heart of the Chelsea midfield as Keira Walsh comes on for the closing stages.

Chelsea continue to carve out chances but look unable to put the game away.

King Szemik does well to keep the out the latest goalward attempt.

Image source, PA Media

Ashley Lawrence is the next player in the referee's notebook as she cynically trips Viviane Asseyi as the West Ham forward was driving up field.

Given Mia Fishel's time out with her ACL injury I seemingly forgot that she dons the number two for Chelsea.

Will always be a full back's number for me that.

Anyway back to the USA international and her on-pitch contributions as she tries to pick out a teammate in the middle but it's cut out at the last.

A triple change for West Ham as they continue to search for an equaliser.

On: Manuela Pavi, Eva Nystrom, Seraina Piubel

Off: Shelina Zadorsky, Li Mengwen, Riko Ueki

Lauren James gets in behind the West Ham defence but fires her shot straight at Kinga Szemik at her near post.

Image source, Reuters

Who would have thought when Chelsea took the lead on 16 minutes it would still be this tight with with 20 minutes to go?

Not many I'm sure.

Chloe Morgan
Former Tottenham and Crystal Palace goalkeeper on BBC Radio 5 Sports Extra

This is the sort of game that is on a knife edge and West Ham are ready to pounce if they get the chance.

Image source, Getty Images

Two more changes for Chelsea as both goalscorers make way.

On: Mia Fishel and Lauren James

Off: Aggie Beever-Jones and Maika Hamano

Viviane Asseyi floats it in and a Chelsea head wins it but then it falls to Li Mengwen to hit on the volley.

That's blocked before Chelsea scramble it away.

Lucy Bronze is penalised for shoving Riko Ueki to the floor on the near touchline and West Ham have another golden chance to get the ball into the box.

Chelsea have attempted 20 shots in this match, higher than their season average of 19.5 in the Women's Super League.

Will they come to rue so many missed opportunities though?