The business end of the season carries plenty of jeopardy for Arsenal. Jonas Eidevall's side have the chance to defend their Conti Cup crown against Chelsea at the end of March but the honour they really crave - the Women's Super League title - remains Chelsea's to lose.
Arsenal have the quality to beat the regularly infallible Blues in a straight shootout.
The Gunners have already demonstrated their ability to outclass Emma Hayes' side in a one-off 90 minutes with a 4-1 demolition at Emirates Stadium back in December. The contest was as one-sided as it has ever been.
Chelsea-Arsenal is the most played fixture in WSL history, with the head-to-head record perfectly balanced at 10 wins apiece.
For Arsenal to tip this year's title race in their favour they are going to have to edge ahead in the head-to-head battle, because nothing less than victory at Stamford Bridge on Friday will keep them realistically in the running.
Eidevall knows, in similar vain to December's meeting, that his side have to chase the win. Naturally, that is Arsenal's regular modus operandi, but with the stakes so delicately poised there is now zero room for error.
Any slip-up effectively rules the north Londoners out of contention, given they already have a three-point deficit to make up on both Chelsea and second-placed Manchester City - who will also have a watchful eye on Friday's proceedings.
Opta's season predictor gives Eidevall a 3.3 per cent chance of winning his first WSL title this season: perhaps a little harsh. A lot hinges on Friday's outcome and the pendulum could swing quite dramatically if the game produces a winner - or if doesn't, with hopeful City primed to pounce.
Arsenal blew Chelsea away in the league three months ago. Tactically
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