Al G Ba: Given the way Murray has struggled throughout this tournament, he'll have to go some to win this. But I hope he does!  

Philip Bain: Battered body vs Battered mind. Both awesome players and deepest respect for both.

Kim Rowell: Go on Andy Murray! What a year, we're all behind you, finish it on top!  

Andrew Castle
BBC Sport tennis commentator on BBC Two

Djokovic has won 19 and lost zero against Murray when he has won the first set.

What a way to start the final - a double fault. 0-15.

The second point is a long rally which ends with Djoko returning that tad bit too long from the back.

Murray then smacks an ace down the T, but it's challenged - the replay confirms it's an ace.

30-15 - wait - make that 30-30 after Murray double faults again.

The Scot holds. Djoko then points at a member of the crowd who is unaware that his flash is on his phone. Schoolboy. I think he was.

Stefan Edberg
Swedish former world number one

Image source, AP

I have to be honest and I think there is a slight advantage to Djokovic in this final. But it would be nice for Murray to win as he has not won it before.

We are under way in the final of the ATP Finals - the world number one spot at stake. 

Stefan Edberg
Swedish former world number one on BBC Two

This is the last match of the season. Murray is tired but he is strong enough. It is more of a mental game now. But it is going to be tough.

Tim Henman
Former British number one on BBC Two

Image source, Getty Images

These guys go back a long time. They know each others games and match up and have similar type of games. The way Murray has come through the rankings, he has served his time and is now number one. he is going to lay it all on the line.

Piers Newbery
BBC Sport in London

Image source, Reuters

Time to do some star-spotting, here's the ATP Finals VIP list:

Jude Law (actor)

Sam Smith (singer)

Clive Owen (actor)

Gerard Pique (footballer)

Miranda Hart (comedian/actor)

Kevin Spacey (obviously)

Bastian Schweinsteiger (footballer and Mr.Ivanovic)

Ana Ivanovic (tennis player)

Woody Harrelson (actor)

Greg James (Radio 1 DJ)

Robert Pires (ex-Arsenal footballer)

Olivier Giroud (still an Arsenal footballer)

Riyad Mahrez (footballer)

and

John Bercow (Speaker of the House of Commons)

... as static as these two have ever been.

In case you missed it, watch the world's top eight tennis stars, including Andy Murray and Novak Djokovic, take on the 'mannequin challenge' before the 2016 ATP World Tour finals got under way last weekend.   

It's fair to say there's a lot of support out there for Andy Murray...

Tim Henman
Former British number one on BBC Two

Image source, Rex Features

Djokovic came through his game in an hour. Murray has spent seven hours on the court in his last two games. Murray needs to go out and put on one epic performance. But if anyone can do that it is him.

The Scot won the toss and will serve first.

Image source, .

BBC Radio 5 live's tennis correspondent Russell Fuller says that Murray has spent nearly three-and-a-half hours more on court than Djokovic this week, which somewhat alludes to how the Serb has performed.

He suffered a blip in the first set against Austrian Dominic Thiem before coming through in three, and then just about got the better of the Raonic serve in the next Ivan Lendl Group game, coming out on top in two tie-breaks.

He despatched David Goffin in 69 minutes, with the Belgian coming in for the injured Gael Monfils.

Djokovic's semi-final was even shorter as he dismantled Kei Nishikori's weak challenge in only 66 minutes. 

This is the last time we will hear the Friday night dance anthems as the players walk out on to the blue court.

Djoko first.

Muzza second.

Will that be tonight's outcome?

It's worth adding to the stat from Murray's former coach: The Scot has played 82 (EIGHTY TWO) singles matches this season.

Tim Henman
Former British number one on BBC Two

Over the second half of the year Murray has been so impressive. We have all been keeping our fingers crossed and hoping this was the final match-up.

Right, press that record button for Countryfile because it's BBC Two you want for live coverage of this match - Sue Barker is fronting that show. And switch on the radio (player) for BBC Radio 5 live commentary with Jonathan Overend MCing.