Good afternoon - we're just under way as Novak Djokovic and Roger Federer begin their latest battle in their increasingly epic rivalry.

That's going to sting Djokovic, losing his title - and potentially the number one spot in a week or two. Federer faces Gilles Simon in the final.

Djokovic 4-6 4-6 Federer: Djokovic battles through here like a wounded racket-wielding tiger, but Federer's eighth ace secures him his third match point, and some more brilliant net scampering secures him the match and possibly the tournament?

Djokovic 4-6 4-5 Federer: Federer can't capitalise on his match points but he has another chance to serve it out now.

Djokovic 4-6 3-5 Federer: Federer looks to be coasting to a simple and comprehensive hold, but Djokovic is resolute, taking him to deuce. Then there's a bit of net-cord action as they move between deuce and advantage, before Federer's nimble feet (assisted by an Djokovic error on his passing shot) help him to the advantage and the game.

Djokovic 4-6 3-4 Federer: A grumpy and exasperated look from Djokovic but he does manage to hold, trying to move in to the net a la Federer.

Djokovic 4-6 2-4 Federer: Body language here is very interesting indeed. Djokovic's expression is that of a desperate man.

Djokovic 4-6 2-3 Federer: The Djokovic serve is looking very flawed. He challenges a call but his cross-court shot was well out. Federer gets a fistful of break points but can't convert any of them.

Djokovic 4-6 1-3 Federer: Federer absolutely cruising this now.

Djokovic 4-6 1-2 Federer: Djokovic gets on the board in this second set but certainly not looking like getting past Federer.

Djokovic 4-6 0-2 Federer: Djokovic looks really scared. I've not seen him look quite so rattled for a long time.

Djokovic 4-6 0-1 Federer: Djokovic is looking a little bewildered out there as Federer pushes him all the way and breaks once more.

Djokovic 4-6 Federer: Early advantage to Federer, then, much stronger on serve.

Djokovic 4-5 Federer: Djokovic holds, but Federer is now serving for the first set.

Djokovic 3-5 Federer: Well, well, well. Federer is storming through this first set and he is forcing Djokovic into errors.

Djokovic 2-4 Federer: Djokovic aims to break back immediately but he can't get past Federer, who holds.

Djokovic 2-3 Federer: First break of the match, and Federer has a well-deserved sit-down and swig of drink.