Boris Becker
Three-time Wimbledon champion on BBC TV

Funnily enough, Zverev's mother can't watch any of her son's matches so she goes out to walk the dog and finds out the result with a phone call after the match.

Jonathan Jurejko
BBC Sport at the O2

The jokers are already in the O2.

"Come on RA-FA!" shouts one guy seconds before Djokovic serves, then another pipes up with a "Come on Roger".

Novak, who always seems desperate to be as loved as his two rivals, must be raging inside...

Djokovic sends a forehand long and almost goes 30-0 down with a double-fault. He challenges the call and is successful, meaning he gets to replay the point.

A lengthy rally then breaks out before Djokovic slams a forehand volley at the net. 15-15.

Zverev sends a forehand return long and overcooks the next one before Djokovic wraps up the game when the German's return falls over the baseline.

Image source, Reuters

Edward Ditchfield: Zverev may be the future, but Djokovic looks like he’s going to stay King of the Hill for a couple of years yet. The form he is in, I can’t see ANYONE getting past him.

Get in touch using #bbctennis on Twitter or via text on 81111.

Jonathan Jurejko
BBC Sport at the O2

Image source, BBC Sport

The O2 fan-meter which has been recording the noise levels of the crowd cheering all week isn't cranked into action as the players warm up.

My ear reckons Djokovic won that battle. Zverev, after 'Boo-gate', is given a very warm welcome, probably because those here tonight feel embarrassed on the part of yesterday's crowd...

This is it. Final time! Who will come out on top?

*Denotes the server

Image source, Getty Images

Impressively, Novak Djokovic has dropped just 13 points on his second serve throughout the tournament.

He has also dropped just 19 on his first serve. Formidable.

Image source, Getty Images/BBC Sport

Leon Smith
GB Davis Cup captain on BBC Radio

It's a stunning and spectacular event with the light show, the imagery, the visuals and all the sound effects.

It must be a great feeling to come out into a packed house and an atmosphere like this.

Image source, Getty Images

Alexander Zverev speaking after his semi-final win over Roger Federer: "Novak [Djokovic] right now is the best player in the world.

"It's very tough to beat him. He's barely lost a match in the last six months. He's playing amazing tennis.

"You have to play your best game to even have a chance. I hope I'll be able to do that."

It seems the world number one has been embracing the outdoors in the capital.

Boris Becker
Three-time Wimbledon champion on BBC TV

Djokovic looks rejuvenated. He looks like he's taking a second chance in his career. Ever since he came back and won Wimbledon he hasn't looked back and he's looked like a man on a mission here.

Novak Djokovic, speaking after his semi-final win over Kevin Anderson: "I'm expecting quite a different match-up for us than what it was in the group stage.

"That win can definitely serve as maybe a mental advantage a little bit coming into the match. But Sascha [Zverev], even though he's a leader of a new generation and still considered a young player - he's an established player.

"He's shown some great skill on the court the last couple years. He's shown why he deserves to be in the mix of the top players in the world."

Image source, Reuters

The players are introduced to the crowd - Alexander Zverev is out first. He receives a warm applause. They are clearly over yesterday's semi-final fiasco.

Novak Djokovic receives an even bigger cheer.

Image source, Reuters

Boris Becker
Three-time Wimbledon champion on BBC TV

Obviously Novak [Djokovic] is the favourite, but I'm happy the new generation is catching up and happy that it's happening to a German of course.

BBC Radio 5 live sports extra

If you're on the move and can't watch this match on BBC Two, you can tune into radio commentary online only by clicking the link at the top of this page.

Jonathan Jurejko
BBC Sport at the O2

Image source, BBC Sport

Great television just doesn't come together you know. Sue Barker and Tim Henman are meticulously going through their research notes before the programme begins shortly.

And, judging by Sue's lively expression and Tim's focused look, having a discussion about something match related.

Where's Boris Becker? He's just having a spot of make-up applied. Sorry Boris...

BBC Two

You can watch this match live on BBC Two from 18:00 GMT with Sue Barker, Tim Henman and Boris Becker. Yay!

Alexander Zverev faced boos at the end of his victory over Roger Federer in the semi-final after he had - legitimately - stopped a point in the tie-break when a ball boy dropped a ball.

In scenes reminiscent of Naomi Osaka's victory speech at the US Open when her win was overshadowed by Serena Williams' outbursts, Zverev was left apologising to both the crowd and Federer after one of the biggest wins in his career.

"I apologised to Roger at the net already, he said it is OK and it is in the rules," Zverev said.

"I'm sorry this happened. I didn't mean to upset anybody."

Jonathan Jurejko
BBC Sport at the O2 Arena

Image source, BBC Sport

This guy, as you know, is not Novak Djokovic nor Alexander Zverev.

He’s a fan who has managed to get his hands on the very same trophy which either Djokovic or Zverev will be grabbing hold of later.

Don’t worry, he’s not sneaked in somewhere he shouldn’t have... the bling is stood inside the concourse for fans to pretend they’re the ATP Finals champion.