Just so you know. If Chelsea and City finish level on points, goals scored and goal difference, a play-off will decide the Women's Super League title.

Moons, planets and stars will need to align in a cosmic conspiracy for this to happen, but it is certainly a real possibility considering the results we have seen this season so far.

BBC 5 live sports extra are providing full commentary from Staines Town this evening.

Click on the play button at the top of the page to listen.

There is the pick of two fine Toni Duggan strikes to choose from in this year's WSL 1 goal of the season.

But that is not all...

Did you love the theatrics behind Ellen White's stunning free-kick against Arsenal in April?

How about the superb control, turn and shot from Chelsea's Ji So-Yun in the recent win over Liverpool?

Watch a selection of the top-flight's finest goals - including top-drawer efforts from Beth Mead, Gilly Flaherty and Natalia - and simply enjoy!

Should Chelsea win today, it would cap a memorable year for a team which had never won a major trophy only a few months ago.

Image source, The FA

Champions League football beckons and the WSL title could be Manchester City's today. That is the most glorious of outcomes for the Sky Blues.

But really, nothing is remotely theirs yet.

The title equation has been spelled out already, and at the very least they need to get a draw to assure themselves of a second-place finish to ensure Women's Champions League football for the first time ever.

The day and week could also turn very sour if they lose and results go against them, leaving Manchester City with nothing in 2015.

Already this week they lost hold of the Continental Tyres Cup, having been beaten by Arsenal in their re-arranged quarter final on Thursday.

The hastily organised fixture drew the ire of City boss Nick Cushing, who labelled the Football Association "disrespectful".

The tie was re-arranged after City were cleared of fielding an ineligible player, with the FA saying it might have lost the registration form.

"We're a professional football team trying to drive this game on and that's not good enough," said Cushing.

"On Monday morning when we gave the players the day off, we thought we had Notts County in six days."

Jo Currie
BBC Sport

Manchester City have a final knock around before their match gets under way against Notts County.

Image source, Jo Currie

Image source, BBC Sport

While their last Champions League appearance came last year, if results do not all go in Arsenal's favour today they will miss out on a third successive Champions League campaign.

The way in which the WSL season is scheduled, Champions League berths are effectively decided for English clubs a year in advance.

The equation is simple today, Arsenal need to beat Birmingham City, Manchester City have to lose and there needs to be a six-goal swing along the way to see the Gunners finish second in the table.

Somewhat ironically, Arsenal's last Champions League tie was their quarter-final exit to Birmingham City.

We will bring goal updates to you here today as we stay with Chelsea v Sunderland as the main event.

Tom Garry
BBC Sport

Image source, BBC Sport

Matt Beard takes charge of his final Women's Super League match as Liverpool manager today, before leaving to take over as Boston Breakers head coach in the USA's National Women's Soccer League.

But the 37-year-old is not vacating his office at the Reds right away as he is set to guide Liverpool into the opening stage of the Champions League next week. Then there is the Continental Cup, in which Liverpool host Notts County in their semi-final in seven days' time.

Like Arsenal v Birmingham City, we will bring you goal updates from Stoke Gifford Stadium where Liverpool face relegated Bristol.

Bristol Academy spent the entire season at the bottom of the table and their relegation to WSL 2 was confirmed with a heavy 6-1 defeat by Manchester City last week.

Image source, BBC Sport

The Vixens, who beat Barcelona in the Champions League to reach the quarter-finals this year, got their campaign off to a rough start as they crashed out of Europe's top club competition with a 12-0 aggregate loss to eventual champions Frankfurt.

Bad quickly turned into worse as they went out of the Women's FA Cup to WSL 2 side Everton before their league campaign had even got going.

There was a change at the top with Dave Edmondson replaced by Willie Kirk as manager. And while the Scotsman guided them to a league win over Notts County and into the knock-out stage of the Continental Cup, there was no way of salvaging their campaign.

Vixens chairman Simon Arnold said the days of competing for silverware - having twice reached the FA Cup final and Champions League in the past five years - are probably behind them as investment from Premier League clubs has put an elite few on a "different planet".

All final-day WSL 1 fixtures are kicking off simultaneously at 18:00 BST.

Elsewhere, Arsenal are chasing Champions League football as they host Birmingham City. And already relegated Bristol Academy host Liverpool.

Tom Garry
BBC Sport

"We've got flags, a band, a growing crowd and the Women's Super League One trophy glinting in the sunshine.

"But - have we got the champions here?

"Chelsea have been at this stage before, with the league in their hands on the final day.

"The fans are expectant, excited, and eager to see them lift their first title. Is this Chelsea's time?"

Jo Currie
BBC Sport

Notts County are out and warming up at the Academy Stadium ahead of their clash with Manchester City.

Image source, Jo Currie

Current Chelsea players Marie Hourihan, Hannah Blundell, Gilly Flaherty, Eniola Aluko, Ji So-Yun, Ana Borges, Katie Chapman and Drew Spence all featured in Chelsea's 2-1 loss to Manchester City on the final day last season, suffering the pain of missing on the title to Liverpool on goal difference.

Will that experience help or hinder them today?

Image source, Getty Images

Image source, The FA

Manchester City: Bardsley, Bronze, Stokes, Houghton, Beattie, Walsh, Scott, Christiansen, Harding, Corboz, Parris.

Subs: Lipman, Johnson, McManus, Flint, Brougham, Maciver, Radtke.

Notts County: Telford, Greenwood, Buet, Whelan, Clarke, Williams, Scott, Walton, Turner, Crichton, Bassett.

Subs: Chamberlain, White, Plumtree, Hassall, O'Neill.

Image source, BBC Sport

Team news from the Academy Stadium coming shortly. But let's first look at the meteoric rise of Manchester City.

Their induction into Women's Super League One in 2014 was a controversial move by the Football Association as their first ever season of top-flight women's football came at the expense of Doncaster Rovers Belles - a club that was among the founding members of the national Premier League in 1991.

City failed to challenge for their league title last season, finishing fifth, but they did collect their first ever piece of silverware - the Continental Cup.

The big team news today is that Eniola Aluko will start for Chelsea. There was serious doubt after she hobbled off injured in their 4-0 win over Liverpool last week.

Image source, The FA

Image source, The FA

Chelsea: Lindahl, Blundell, Flaherty, Fahey, Davison, Aluko, Ji, Rafferty, Kirby, Chapman, Spence.

Subs: Hourihan, Bright, Borges, Coombs, Brett, Meiwald, Ayane.

Sunderland: Olsen, Holmes, Bannon, Williams, Greenwell, Furness, McDougall, Kelly, Joice, Ramshaw, Mead.

Subs: Harkness, Roche, Beer, Potts, Brown, Hill, Etherington.