Nick Harrison: Us Blades producing bottles since 1988.

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An immediate reply for Sheffield United. Seconds ago, Blades boss Nigel Clough had his head in his hands. Now his side are only three behind in the semi-final tie as Jamie Murphy's left-footed shot deflects in off Nathan Thompson.

Michael Smith wiggles his way through the gaping Blades defence and slots home a third for Swindon.

Have they got it wrapped up in 17 minutes?

Blades defender Bob Harris, who played his part in Swindon's second, shoots at goal with his weaker right foot but it goes wide of Wes Foderingham's post.

Nabil Hassan
BBC Sport at The County Ground

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"The first chants of "we are going up" ring round the County Ground and you can't blame Swindon's fans for being optimistic after their stunning start.

"Sheffield United are being completely blown out of the water here. It's 2-0 inside 10 minutes and it's practically game over."

I don't know about you, but I'm knackered already.

The pace has slowed down slightly, perhaps as Sheffield United rack their brains for a plan B.

Steve White
Ex-Swindon Town striker, BBC Radio 5 live sports extra

"That is dreamland for Swindon. Nathan Byrne played a big part up at Sheffield and he's played a big part in the first two goals. He wouldn't give it up, went to the touchline, lobbed it over the goalkeeper and Gladwin had an easy tap-in."

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Ben Gladwin has done it again!

The former removals man (no, really) has an easy tap-in after Bob Harris delivers a defensive lapse into the path of Nathan Byrne.

The home fans are bouncing. Nigel Clough looks bewildered.

Straight after Ben Gladwin put Swindon ahead on the night, Sheffield United presses at the other end, but Ryan Flynn can only head over at the back post.

And it's followed by Thursday's match-winner Nathan Byrne going at goal after a weaving run.

It's end to end already.

Steve White
Ex-Swindon Town striker, BBC Radio 5 live sports extra

"That's an unbelievable half-volley from Gladwin. Great work from Smith, he got the cross in, and it was such a sweet strike. What a goal - a magnificent clean strike."

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What a start by Swindon.

Ben Gladwin pummels the ball into the bottom corner after Craig Alcock heads off the initial danger.

Swindon take a two-goal lead in the tie.

Swindon enjoying most of the early possession so far.

Michael Smith rushes forward but can't quite reach the ball before Jay McEveley ushers it into the safe hands of Blades keeper Mark Howard.

After a couple of team huddles, Swindon pair Jermaine Hylton and Ben Gladwin start us off.

It really is glorious weather in Wiltshire...

Steve White
Ex-Swindon Town striker, BBC Radio 5 live sports extra

"The team that are able to control their emotions and their nerves are the team that will come out on top."

Listen to live commentary on BBC Radio 5 live sports extra via the Live Coverage tab.

Right then. Has everyone had their pre-match meal, completed their dressing room rituals and limbered up?

Good, because the teams are out and we're nearly ready for kick-off at the sun-drenched County Ground.

Click on the Live Coverage tab to listen to live commentary of Swindon Town v Sheffield United on BBC Radio 5 live sports extra.

Your commentators this evening are BBC Wiltshire's Andrew Hawes and former Swindon Town striker Steve White.

Fact fans: White was the man who scored twice in Swindon's first ever play-off final in the 1986-87 season.

I'm too young to remember, of course. Ahem.

Sheffield United manager Nigel Clough told Sky Sports: "It's still all to play for. You'd fancy Swindon after the first leg but we've got 90 minutes to get to Wembley.

"We know we played well at home. Decisions went against us and we let in two soft goals. We can let that happen tonight. I'd take penalties."

More from Swindon chairman Lee Power:

"I thought we'd be competitive this year. I knew that the squad we put together was going to be decent. People were a bit disappointed we didn't go up automatically but we've had a fantastic season and we need to finish it off now.

"I'd take a draw! But nobody's being complacent. We had a fantastic night up in Sheffield on Thursday and the lads know it's going to be a tough game. If we can play how we play, I'm confident we can go through."

Swindon chairman Lee Power has been speaking to BBC Points West ahead of tonight's second leg:

"It's a massive game for the football club. I can't say I'm looking forward to it. It's worth a lot of money. A lot of people will be going home unhappy or ecstatic, so there's a lot on the players' shoulders.

"They say the play-offs and Wembley are worth around £900,000 and £1m. So financially it means a lot, but I'm a football person and a football supporter. I know what it means to the people of Swindon."

The most important question of the night: Who's going to get to Wembley?

Get in touch on Twitter using the hashtag #BBCFootball., external Let us know which team you think will progress and throw in a score prediction while you're at it.

Gareth Torpy: Sheffield United to win 3-0!

Mark Halliwell: 2-1 Swindon.

Mike Stewart: As I'm not watching probably a 4-4 classic.

Fear not, Mike. If you're away from your TV we'll have all the action right here.