Roger Federer beats Stan Wawrinka 7-5 6-3
Federer v Novak Djokovic in Sunday's final (18:00 GMT)
Djokovic beat Rafael Nadal 6-3 6-3
Federer 7-5 6-3 Wawrinka
So the season comes down to this.
Novak Djokovic, the best player in the world, against Roger Federer, the best player ever.
A 18:00 GMT start, best of three sets, and one to blank out the diary for.
We'll see you there. Can't wait. Bye for now.
Federer 7-5 6-3 Wawrinka
The greatest risk to Roger Federer's place in tomorrow's final was probably an repetitive strain injury from the post-match autograph signing.
A fevered huddle, bobbing with giant ball and books, collects at the exit and the Swiss takes his time to sign plenty before admitting defeat as more and more join the queue.
Federer 7-5 6-3 Wawrinka
When he says that Novak Djokovic should be out already, Roger Federer is referring to his win over the Serb in the group stages earlier this week.
That win edged Federer 22-21 ahead in their head-to-head record.
I don't think it is going to be as straightforward as that 7-5 6-2 success on Sunday.
Image source, Getty ImagesRoger Federer: "A great match, I really enjoyed it. It will be a perfect ending only if I win. Novak should be knocked out by now! No, I am joking. He played a great match against Rafael Nadal earlier today and I'm sure it will be a fantastic meeting."
Federer 7-5 6-3 Wawrinka
Image source, ReutersLove-forty and three match points.
And, just like in the match as a whole, Roger Federer does not need to do that much to seal it.
A hoppy second serve should be returned in court, probably with interest.
Instead Stan frames one clean over the baseline to start the death march to the locker room.
Kind words at the net between the two.
Image source, Getty Images*Federer 7-5 5-3 Wawrinka
Image source, ReutersStan Wawrinka sees off a match point with an off forehand that sprays away for a winner.
Roger is not letting him rest just yet though. He keeps fetching and harrying to knock the world number four back from game point.
Finally Stan makes it over the line.
If he struggled that hard off his own serve though, what chance does he stand in the next game as Federer serves for the match?
Federer 7-5 5-2 Wawrinka*
Love-thirty down and staring the exit door in the face, Stan Wawrinka's pride is stirred.
He unloads with three successive aces. Mighty serving. The crowd groan as his first serve is snagged in the tape on the next point.
No escape in style. Instead Stan lumps a backhand into the net to take us to deuce.
Image source, EPARoger Federer has cruise control engaged and his feet up on the dashboard.
Another hold to love and Stan Wawrinka looks like a man who is here in body, but whose spirit and belief is already back in the locker room.
He serves to stay in the match next.
Image source, AFPStan Wawrinka keeps his end up, getting Roger Federer in a tangle on the baseline with a wrong-footing flat backhand on the game's final point.
He has to do more on return though if he is to get a chance to turn this match around.
Thierry Henry is in the house by the way and, after being picked out by the big screen a couple of times finally obliges with a half-hearted wave to the crowd.
Image source, ReutersRoger Federer comes under the service spotlight at 30-30.
That is the way to do it. Successive aces see off the danger.
It has to be said though, that neither of these men are at the level that Novak Djokovic set with a sparkling performance against Rafael Nadal earlier in the day.
Image source, Getty ImagesStan Wawrinka is throwing the kitchen sink at the opposite end, but the balance has disappeared from his game.
He is charging in behind nothing-much groundstrokes and overcooking long as he goes for too much power.
Federer has 15-40 and two break points.
But Wawrinka yanks back on the joystick and pulls himself out of the tailspin just in time.
He puts away a couple of volleys in assured style to come out of that scrape.
David Law
BBC commentator
We're getting a cheer for Hugh Grant. We're getting one for David Beckham, oh and Thierry Henry.
Image source, AFPFederer 7-5 3-0 Wawrinka*
Image source, ReutersRoger Federer rides out that little bit of turbulence. He sees off a break point and coasts back to the sanctuary of his courtside stool with his serve intact.
It is only one break, but it looks like chasm on the scoreboard. He is half way there in this second set and, in the words of Bon Jovi, it is Stan Wawrinka living on a prayer.
*Federer 7-5 2-0 Wawrinka
Image source, EPARoger Federer is dancing into the net at the merest invite and, even when the chance presents itself, Stan Wawrinka is struggling to squeeze the ball by his man and into court.
Hang on. That is more like it. A superb short cushioned angle from Stan and a Federer forehand into the net and we are at deuce.
*Federer 7-5 2-0 Wawrinka
Roger Federer's wrists must have suspension like a monster truck.
He soaks up the venom from a vicious Stan Wawrinka forehand and drops a delicate volley out of reach.
Wawrinka's game is going pear-shaped suddenly. Errors cropping up like an infestation and he drills into the top part of the net to hand over the early break in the second set.
Image source, Getty ImagesRoger Federer's concentration wavers.
A double fault puts him into a spot of 0-30-style bother.
He looks as vulnerable as a peach in a blender in the next rally, but Wawrinka, with a clear line of sight down the line, sends his forehand south into the net.
Federer makes good his escape, via a helpful net cord, and is over the hill and safe before Stan can really turn the screw.
*Federer 7-5 Wawrinka
Image source, AFPStan Wawrinka suddenly gets as crumbly as a week-old lump of Wensleydale.
He double-faults, blots long and then sees a cross-court winner whizz past him for 15-40. Federer with two set points.
And Stan Wawrinka marches to his doom like a lemming, coming to the net once more without placing enough pressure on Roger Federer.
His volley is into the net and that is the first set down the gurgler.
Image source, AFPThis train looks like the non-stopper express to tie-breakville.
Roger Federer dusts off a service game to love.
Meanwhile a group of Swiss fans are looking decidedly smug as their nation's finest go head to head, oleing their way into some synchronised scarf waving.
No sighting, as yet, of any cowbells. Which is a pity.
Image source, AFPPost-modern? Meta?
I don't know what it is, but a member of the crowd has created a giant cardboard cut-out of their own tweet declaring their love for Rodge and is waving it about proudly right here in the real, physical, offline world.
People have won the Turner Prize for less.
Anyway, Stan Wawrinka serving to stay in the first set and he makes no mistake, ploughing through to 15 with power and purpose.
Roger Federer is starting to dictate terms from the baseline. He catches Stan Wawrinka wrong-footed as he directs a backhand down the narrow angle of the court.
Into the net he tip-toes at 40-15 up. Coming in behind the cover of some good deep hitting, he puts away the volley to put himself ahead on the scoreboard.