Arsenal

Petr Cech starts for Arsenal against his old club. Arsenal make nine changes from their last league game, about four months ago at Burnley. It's a back three with Mesut Ozil behind the electric front two.

Full line-ups to come...

Chris Bevan
BBC Sport at Olympic Stadium, Baku

A huge image of Chelsea's third keeper Robert Green just flashed up on the big screen here, as he made his way through the bowels of the stadium. It did not exactly send the fans who are already in their seats wild, to be honest.

I wonder what the tea is like here at the Olympic Stadium? Rob might be able to tell us shortly...

Everyone gets a lot more excited when the Arsenal coach rolls into view a few moments later, with a brief glimpse of Mesut Ozil sending screams and ripples of applause around the ground.

We should have team news for you soon enough...

Mark: Sorry Arsenal but as a neutral Man U fan there is no way I could stand Piers Morgan gloating on TV in the morning if you win, so it's Chelsea for me...

Sean: Wojciech Szczesny and Lukasz Fabianski both played their last games for Arsenal as winners in Cup Finals, so Cech might be a good idea between the sticks

Chris Bevan
BBC Sport at Olympic Stadium, Baku

One thing that really stands out from talking to people in Baku earlier today is that this is truly an international event, and not just for the neutrals.

Fans of both clubs have come from all over the world for this game - some finding it far easier than the UK fans, like the Arsenal fan from Georgia who got a bus for £5 from the border, or some who have gone for the long haul - like the Chelsea supporter from Mexico who set off for Azerbaijan last week.

For some, like the family of Arsenal fans I spoke to from Dubai, this is realistically the only chance they will get to watch their team together in a competitive match. No wonder they were so excited.

Remember 'Game 39'? It is happening in front of your eyes....

Alan Pardew
Former West Brom manager on BBC Radio 5 Live

I think it was a little bit unusual because the whole session was under the scrutiny of the media.

The tension is high on the approach to a final and unfortunately for Chelsea that surfaced yesterday. Maurizio Sarri's reaction to it was not great but the players look calm today.

Lee Dixon
Former Arsenal and England defender on BBC Radio 5 live

I get the feeling that the Arsenal players all get on with each other quite well but a little bit of needle here and there is not a bad thing

Chelsea boss Maurizio Sarri stormed out of the Chelsea training session last night. Not happy...

Phil McNulty
BBC Sport chief football writer

If a crystal ball of Maurizio Sarri's season in August had predicted a third-placed finish, the League Cup final only being lost on penalties to the team that completed the domestic clean sweep and an appearance in a major European final, surely this would have been deemed acceptable?

If he had achieved this at other clubs there would be talk of a contract extension, not of a parting of the ways.

Chris Bevan
BBC Sport at Olympic Stadium, Baku

He's not here in person, because of security concerns, but Arsenal Armenian midfielder Henrikh Mkhitaryan does at least make it into tonight's programme.

Image source, BBC Sport

Arsenal

Image source, Getty Images

Tonight is not just about glory for the Arsenal, though.

After finishing fifth in the Premier League, the Gunners need a victory tonight to earn a place in next season's Champions League.

Unai Emery is a Europa League expert. Can he bring home the goods?

Chelsea

Chelsea are already in the Champions League next season so it's all about a trophy tonight.

Win, and Maurizio Sarri will win his first major trophy and become the oldest coach to win the Europa League at 60 years 139 days.

Andy Townsend
Ex-Chelsea midfielder on BBC Radio 5 live

It's difficult to say, but I think Arsenal need to win this more for a place in the Champions League because Chelsea are already there.

Say you could pick a team made up of players who have reached ths final - and the Champions League final.

Who would you pick?

Image source, BBC Sport

Here's my go - I wanted to do a Christmas tree formation for pure 90s reasons.

I'm sure you can do better - have a go here!

BBC Radio 5 Live

Is now live on BBC 5 live. Listen in by pressing play above.

Come for the build-up, stay for full comms from 20:00 BST.

'Pat Nevin's guide to Azerbaijan' is a six-parter coming to ITV1 this autumn.

Chris Bevan
BBC Sport at Olympic Stadium, Baku

Are you wondering what Baku is really like? I asked Chelsea legend Pat Nevin that exact question earlier...

Chelsea

Is this to be Eden Hazard's final game in a Chelsea shirt?

It seems so.

Image source, Getty Images

What a player he has been in the English game. 85 Premier League goals, as many as Fernando Torres or Louis Saha, two league titles and a place in the club's history for sure.

But equally, he's now 28 and it's probably now or never in terms of a big(ger) move...

Chelsea

Image source, PA

There is speculation that, win or lose in Baku's Olympic Stadium, it could be Blues boss Maurizio Sarri's final game in charge.

He refused to discuss reports linking him with Italian side Juventus , externalon the eve of the final, saying: "I have a contract with Chelsea for two years.

"So, first of all I will speak with Chelsea but this is not the moment."

Arsenal

Arsenal are definitely without Armenian midfielder Henrikh Mkhitaryan, who decided not to play for security reasons because of a dispute between his country and Azerbaijan.

Injured midfielder Aaron Ramsey has already played his last match for the club before his summer move to Juventus but Emery must decide whether veteran goalkeeper Petr Cech will start against his former side in his final game before retirement.