Back to sock-related news, and BBC Radio 5 Sports Extra say that Arsenal will wear the correct socks in the second half.

Arsenal attack and straight away it's Chelsea's turn to do the same.

Lauren James beats two Arsenal defenders with a lovely dinked pass, but Johanna Rytting Kaneryd can't get on to the end of it in time and Manuela Zinsberger collects.

Nothing comes of the corner with the initial delivery being cleared.

Arsenal eventually work another chance, but Steph Catley's shot goes straight into Hannah Hampton's hands.

Helen Ward
Former Chelsea and Wales striker on BBC Radio 5 Sports Extra

That is a brilliant passage of play. Hannah Hampton made an important save at her near post but that's the best passage of play by a long shot so far.

That's the first time the packed Arsenal end have been given anything to shout about.

They work the ball out to Kim Little after a wonderful switch by Lotte Wubben-Moy, but Little's shot is turned behind for a corner by Hannah Hampton.

William: Given the number of injuries Chelsea have got, no excuses for Arsenal tonight. With the squad and team they've got available, they have to win this.

We've been made to wait for this one, but it's been worth it.

It's been end-to-end so far, with Chelsea probably being better going forwards.

They break down the right-hand side through Johanna Rytting Kaneryd, who sends a delivery into the Arsenal box, but it's cleared and she can't keep the chance alive.

A momentary concern for Arsenal as Kim Little goes down after receiving a blow to the face as she goes for a challenge with Kadeisha Buchanan.

She's fit to continue, though, after giving her teeth a quick check.

Image source, Getty Images

Chelsea have made an energetic start.

Lauren James is the first to try to test the Arsenal goal, trying to curl an effort from outside the box, but she fails to hit the target.

The hosts are building up quickly and pressing with intensity. That delay doesn't look to have made them switch off.

Here we go!

Chelsea get the game started.

Helen Ward
Former Chelsea and Wales striker on BBC Radio 5 Sports Extra

It's such a small thing but it's made such a big impact. A 30 minute delay because of the wrong socks. It's just an oversight which surprises me because kit managers are usually the most meticulous at the club. The main thing is we've got a game on and we're almost ready to go.

As you can see, that 30-minute delay to kick-off was caused by Arsenal's socks.

Image source, PA Media

Image source, PA Media

The teams are out at Stamford Bridge!

Who do you think will come out on top this evening? Hit the thumb's up for Chelsea, or the thumb's down for Arsenal.

Image source, Getty Images

Ex-England midfielder Karen Carney, speaking on Sky Sports, says: "We've waited so long to talk only about football in the women's game. Clearly it's a human error, a mistake, but it's embarrassing, it's embarrassing for the players and I'm frustrated. This is a massive crowd, a massive game.

"It's a simple thing, a kit and we have got it wrong. People make mistakes but the game does not need this and it's frustrating. We will move and and have to but it does not look good for the game.

"Arsenal this season off the pitch have been magnificent, they have led the way in terms of crowds, attendances, marketing, it's just a mistake from them."

The players have gone back inside after completing their (second) warm-ups.

Kick-off approaching in less than 10 minutes.

Well... we've still got a while to go until things get started at Stamford Bridge.

Here's something you might have missed this week.

Arsenal centre-back Amanda Ilestedt announced she is pregnant with her first child - and she's in the stands tonight.

The Sweden defender, 31, joined Arsenal in June from Paris St-Germain.

Arsenal confirmed she would take part in "light training activities" but would "not be available for selection until after she has given birth".

• READ MORE: Arsenal defender Ilestedt announces pregnancy

Image source, Getty Images

Arsenal are on the pitch warming up - but they're wearing Chelsea socks.

Arsenal had brought white socks - which would have clashed with Chelsea - to the game tonight.

They've got some which will work now, with the Chelsea badge taped over, and now the players have a bit of time to re-focus themselves before we get started at 19:30 GMT.

Helen Ward
Former Chelsea and Wales striker on BBC Radio 5 Sports Extra

There will be a fine on two counts, the kit issue and the late kick-off. Somebody is going to get in a bit of trouble I think. I'm sure it has happened in the men's game as well but when this happens on such a high profile game in the WSL, a game that's live on TV, a game that's got a near sellout crowd it doesn't help those that still want to put it down. It's silly little thing that makes a massive impact.

Sky Sports are reporting that kick-off is now 19:30 GMT.

Chelsea say that kick-off has been delayed "for an indefinite period due to an Arsenal kit issue."