It's been quite a frenetic start to this game. With the atmosphere simmering, neither side has really settled yet and the ball is spending most of its time in the air.

Barnsley work the ball into the Swansea penalty area and Dominik Frieser falls under a challenge from Marc Guehi.

Despite the roars from the home crowd, there's no appeal from the Barnsley players.

From the resultant throw-in, the ball is cleared to Romal Palmer on the edge of the box but his shot goes over and wide.

Oakwell sounds highly-charged tonight.

Everyone's going to be saying this for the foreseeable future but, while it's still a novelty, how good is it to have fans back at stadiums? Just brilliant.

Soundtracked by 4,000 rowdy Barnsley supporters, Swansea have the first sight on goal but Jay Fulton's looping header is easily held by Barnsley keeper Bradley Collins.

Ian Walsh
Former Wales striker on BBC Radio Wales

I always believe a bright start from Swansea City with plenty of touches of the ball, good movement, will quieten any ground anywhere.

Referee Geoff Eltringham blows his whistle and we're off!

Ian Woodcock
BBC Sport at Oakwell

For anyone into this sort of thing...

Barnsley have never failed to reach the final in the three previous times they've been in the play-offs.

Swansea finished with 80 points in the regular season, the exact same number of points as when Brendan Rodgers took them up through the play-offs 10 years ago.

The fans are in full voice here now and it really is a great sight after so long away.

Swansea head coach Steve Cooper has just been discussing his decision to bench full-back Connor Roberts.

"It's a good problem to have," he told Sky Sports.

"Both players have had an outstanding season for us, and it's an area where we have some strength in depth."

The walk-on music at Oakwell is brilliant ('Cocoon' by Timerider if you're wondering), and it sounds even better with the accompanying cheers of fans.

A great sense of occasion as both sets of players walk on to the pitch.

Image source, Getty Images

Play-offs are stressful. For anyone involved, they can produce ecstatic highs - but also some crushing lows.

Swansea's former Barnsley midfielder Conor Hourihane, who is on loan from Aston Villa, knows that better than most.

His first taste of the play-offs was in League One in 2015-16 with Barnsley, who eased past Walsall in the semi-finals before beating Millwall 3-1 at Wembley.

In 2017-18 Hourihane was part of the Villa side who, having overcome Middlesbrough in the semi-finals, lost the Championship play-off final to Fulham at Wembley.

Twelve months later they were back. Hourihane scored a brilliant first-leg goal in the semi-final victory over West Brom to set up a final with Derby, which Villa won 2-1.

The 30-year-old has been talking about those ups and downs in this interview with BBC Sport Wales' Gareth Vincent.

Image source, Rex Features

If Barnsley are to improve their recent record against Swansea tonight, there's a fair chance Daryl Dike will have a say in the matter.

The 20-year-old United States forward has scored nine Championship goals for Barnsley since joining on loan from Orlando City in January.

Great news for the Tykes, then, that Dike's loan has been extended to include the play-offs.

"Transfers in winter windows you don't have as much time, so the player has to have an immediate impact," said Barnsley manager Valerien Ismael.

"We took our time to work with him in training and he understood quickly what we wanted to see on the pitch for him for him to be able to make the difference."

Image source, Getty Images

If you go further back in time, these two sides have history when it comes to play-offs.

In the 2006 League One play-off final, it was Barnsley who emerged victorious after a penalty shootout at the Millennium Stadium.

Alan Tate missed the decisive penalty for Swansea that day but he had a happier experience five years later as he helped the team win promotion to the Premier League after beating Reading in the Championship play-off final at Wembley.

Now a part of the Swans' coaching staff, Tate has been discussing the club's play-off past and their hopes for this season.

Image source, Rex Features

Swansea won 2-0 at Oakwell in January to strengthen their hold on the second automatic promotion place when the sides last met.

On that occasion Ben Cabango and Jamal Lowe were on the scoresheet.

They let that slip but the Swans will hope their recent record against Barnsley (who they also beat 2-0 at home last December) bodes well for tonight's encounter.

Leon Britton
Swansea City midfielder on BBC Radio Wales

I think it’s going to be tight, I don’t think there’ll be too many goals tonight.

I’m going to go for 0-0.

Image source, Getty Images

Swansea City successes do not often trigger celebrations in Cardiff.

A Championship play-off triumph at the end of Ben Cabango's eventful season would change all that - in a couple of houses at least.

"My nan, my aunty, my uncle, my parents - all the households will be supporting Swansea. Hopefully we can get the job done," the Swansea centre-back says.

"They might have to keep it quiet, but there would be a few parties in Cardiff!"

Cabango was born and raised in the Welsh capital, his family is still there and he speaks with a Cardiff accent.

So how did he end up playing for Cardiff City's arch rivals? You can read about that - and plenty more - in Cabango's interview with BBC Sport Wales' Gareth Vincent.

Image source, Huw Evans Picture Agency

Pressure? Favourites? Swansea head coach Steve Cooper's not having any of that.

The Swans beat Barnsley 2-0 in both league meetings this season, but Cooper has brushed off Ismael's claim, believing Swansea, Barnsley and fellow semi-finalists Brentford and Bournemouth start on an equal footing.

"We are all in the mix. It's one phase done in the league and we all start again in the play-offs - four teams and we all start in the same spot," Cooper said.

"It's whoever performs in the two games to start with, one will get through from both ties and then there is another game after that. It's four teams in exactly the same position all vying for the same thing.

"We had a good go at automatic promotion even though at the end we found it difficult... the play-offs give you a second chance of getting promoted. We've got to back ourselves and believe in what we do."

Ian Woodcock
BBC Sport at Oakwell

It feels like the main mind game before any play-off semi-final is to try and suggest that the other side is the favourite, with all the pressure on them to win.

That’s certainly what Tykes boss Valerien Ismail has looked to do in the build up to this.

Maybe he’s got a point that there is more expectation on the South Wales side but pressure? I’m not sure.

Barnsley have been in the top-flight once in their entire history and have only reached the play-offs in this league once this century, back in 2000.

With some key players out of contract at the end of the season and others likely to be coveted by other clubs will they get a better chance than this to reach the Premier League again?

Image source, Rex Features

While this is Swansea's second successive go at the Championship play-offs, Barnsley have proved to be this season's surprise package.

They were fourth from bottom when Valerien Ismael was appointed in October, and their fifth-place finish in the regular season was their highest league finish since 1999-2000.

Ismael believes Barnsley are the underdogs for this tie, and he's ramping up the pressure on Swansea.

"They're one of the best teams in the league and normally they'd be promoted. There's big pressure on them," the Frenchman told BBC Radio Sheffield.

"When you see the four teams in the play-offs, we are the underdogs. The other three teams have bigger budgets and more player depth, but we have our intensity and our desire. Mentally we are really strong and that's how we can compete.

"It was not the expectation that Barnsley would be where we are."

Image source, Huw Evans Picture Agency

Grimes has also been discussing Swansea's promotion hopes as they brace themselves for a second successive Championship play-off campaign.

The Swans lost to Brentford in last season's semi-finals, and Grimes reckons they'll be driven on by the pain of that defeat this time around.

"This year we have gone from strength to strength as a team," the midfielder said.

"Last year it was my first time in the play-offs and a lot of the players' first time.

"This year it will be very different. We have got a lot of players who have been there and done it.

"We have had more points, more clean sheets, better defensive record. So from that point of view I do think we are better equipped this year."

There won't be away fans at Oakwell tonight but it won't be long until Swansea City are reunited with their supporters.

There will be 3,000 fans at the Liberty Stadium on Saturday for their home leg against Barnsley, much to the excitement of Swans captain Matt Grimes.