Ollie Watkins and Said Benrahma combine well again for the hosts and Benrahma goes on a good run, charging across the centre of the pitch just outside the area, but his shot swerves wide of the top corner.

Image source, Getty Images

Swansea are having a decent spell of territory now and they force a corner, but the Bees do well to clear the immediate danger.

Brentford look much more like the Brentford we saw in their first seven games back after the restart in June, rather than the Brentford we saw in their past three outings, which all ended in defeats.

You'd back Said Benrahma to score here, as he races on to Ollie Watkins' pass, after Watkins had used his strength to hold it up well... But Benrahma's low shot is blocked, as several Swansea defenders race back in to their box.

Initially, Benrahma had way too much room. The Swans are quite open at the back.

Image source, Rex Features

Off they go for the first-half drinks break, and I'm sure thousands of fans of both teams will need one.

Brentford have turned the tie on its head.

The way both teams are set up right now, you wouldn't rule out another three or four more goals tonight. Great stuff for a neutral.

Former Brentford captain Jake Bidwell heads wide at the far post for Swansea, from their latest attack.

It's end-to-end now and Swansea almost have a third, but Said Benrahma's low effort hits the inside of the post.

It's one of those that rolls across the face of goal behind the keeper after hitting the post, and goes out on the opposite side. Millimetres from a goal.

Seconds earlier, at the other end, Conor Gallagher went close for Swansea but David Raya made a good low save to his left.

Cracking game, this.

The play-offs never fail to deliver. Who saw this coming?

Swansea could hardly have imagined a worse first 15 minutes, while Brentford fans must be in dreamland.

You can have your say on this game via #bbcefl on social media.

Image source, Rex Features

It took less than 11 minutes for Brentford to cancel out Swansea's 1-0 advantage from Sunday's first leg.

Just in case you're wondering, the away goals rule is not used in the EFL play-offs.

Henrik Dalsgaard gets the game's first booking, going in a bit late on Conor Gallagher from behind.

The visitors' Rhian Brewster is played clean through on goal, in acres of space... But the flags up. He's just offside. Sian Massey-Ellis is running the line and gets the decision spot on.

Brewster, for what it's worth, clipped wide of goal, but I think he'd seen the flag go up.

The Bees' Emiliano Marcondes has the game's first shot at goal, which swerves awkwardly from distance, but Swansea keeper Erwin Mulder palms it away.

It was straight at Mulder in the end, but moved around a lot in the air. Decent effort.

Image source, Rex Features

Rights restrictions mean that unfortunately we cannot bring you live audio commentary of this game online, however if you're in London or Wales, you can listen to this game via BBC Radio London or BBC Radio Wales on your radio. Fine things, radios. Enjoy!

All the players and officials take a knee.

And then the Swans, in their green and black away kit, get this second leg started.

And here come the Brentford players, for one last time at Griffin Park.

The Pointer Sisters' I'm so excited hit plays on the speakers at Griffin Park, as the Swansea players head out on to the field.

I am excited, don't know about you lot. It's a huge night for both teams.

Here's a reminder of the teams tonight. Just the one change for each side. Emiliano Marcondes comes in for Josh Dasilva for the Bees, while Kyle Naughton returns from suspension to replace Ben Cabango for the Swans.

Brentford XI: Raya, Dalsgaard, Jansson, Pinnock, Henry, Jensen, Norgaard, Marcondes, Mbeumo, Watkins, Benrahma

Swansea XI: Mulder, Naughton, Van der Hoorn, Guehi, Roberts, Fulton, Grimes, Bidwell, Gallagher, Ayew, Brewster

Swansea boss Steve Cooper insists they will play to win this second leg, even though a draw tonight would be enough take them to Wembley.

"It's still all to play for - it's still in the balance," the Swansea head coach said.

"We have a small advantage, but it's only an advantage if you use it. As far as I am concerned, it will be 0-0 and we go to play normally. We certainly won't be playing for a draw.

"I think that would be a dangerous game. It doesn't suit our mentality - we want to be positive. If you are 1-0 up or 1-0 down at half-time, you don't think it's done. That will be our mentality."