Chelsea and Arsenal go head to head at Kingsmeadow on Friday evening in a mouthwatering top of the table clash.
The Gunners currently sit two points clear of the Blues at the WSL summit but have played a game more, giving Friday's fixture a real 'winner takes all' feel in this season's title race.
Here's everything you need to know about the crucial encounter.
How to watch Chelsea vs Arsenal on TV/live stream
When is kick off? Friday 11 February, 19:45 (GMT)
Where is the match being played? Kingsmeadow
TV channel/live stream? vSky Sports Premier League, Sky Sports Football (UK), FA Player (international)
Highlights? FA Player, BBC Women's Football Show
Referee? Rebecca Welch
Chelsea team news
Chelsea will be buoyed by the return of influential midfielder Ji So-yun, who has returned from the Asia Cup with a runners up medal.
However, captain Magdalena Eriksson is expected to remain unavailable though injury until after February's international break.
Striker Beth England is also unlikely to feature, having been left out of England's Arnold Clark Cup squad due to injury.
Arsenal team news
Arsenal will be without the suspended Katie McCabe, and Jonas Eidevall has confirmed that defender Lotte Wubben-Moy is also likely to miss Friday's fixture.
Leah Williamson was absent from last weekend's draw with Manchester United as she continues her comeback from injury, while Tobin Heath was replaced at half time, and the Arsenal boss revealed he had 'high hopes' for the pair being available on Friday evening.
After opening her Arsenal account from the bench against Manchester United last time out, Stina Blackstenius could start for the Gunners against Chelsea, with Arsenal fans eager to see the Sweden striker and Vivianne Miedema play alongside one another.
Chelsea vs Arsenal predicted lineups
Chelsea: Berger; Andersson, Bright, Nouwen, Carter; Ingle, Ji, Cuthbert; Kirby, Kerr, Harder.
Arsenal: Zinsberger; Catley, Beattie, Williamson, Maritz; Walti, Little, Nobbs; Parris, Miedema, Mead.
Chelsea vs Arsenal score prediction
Arsenal ran out 3-2 winners when the two sides met at the Emirates on the opening day of the season - but plenty has changed since then.
The Gunners enjoyed a lightening fast start to the campaign under new boss Eidevall, but have stuttered since November and seen their lead at the top of the table eaten up. They have won just two of their last seven matches in all competitions.
Chelsea were comfortable winners when the pair faced off in December's FA Cup thanks to a Sam Kerr brace, and although the result will likely not be as emphatic as it was at Wembley two months earlier, Emma Hayes' side will come out on top once more and edge closer to a third successive WSL title.
Score prediction: Chelsea 2-0 Arsenal