Australian Open, Melbourne
Men's semi-final latest:
R FEDERER (Swi) v N DJOKOVIC (Ser)
5-7 3-6 6-7
LATEST ACTION (all times GMT)
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1118: "Never has a study lesson been better spent that watching live streaming of the match in the school library! Well done Novak."
Matt, Manchester, via text
1117: "The king is dead - long live the king!"
Rob in Falkirk, via text
1115: "That was a staggering performance from the number three seed. Federer had an off day, but my word he didn't give him anything."
BBC Sport pundit John Lloyd
Federer 5-7 3-6 6-7 Djokovic
Fed gets the mini-break with a pounding forehand and after the rally of the match the Swiss produces a truly memorable backhand right into the corner. He promptly loses the break with a mis-hit forehand and then blazes one miles beyond the baseline - 3-3. They swap enormous serves before Fed goes 5-4 up and screams "come on". Two huge Serbian serves hand Djoko a match point and Fed nets. Djoko slumps to the floor - he cannot believe what has just happened. Ladies and gentlemen, you've just witnessed history in the making.
Federer 5-7 3-6 6-6 Djokovic
Fed cranks up the pressure with a brilliant reaction volley at the net and the crowd are off their seats. Djoko then goes long - set point Fed, but the Serb produces a monster serve to save it. A blinding cross-court forehand earns Fed another one, but Djoko again holds his nerve. Another massive ace and we're into a tiebreaker.
1057: "This is great - I'm watching online at work, my boss caught me during the first set and told me to get back to work, but he is now sitting next to me eyes glued to the screen."
Anonymous, via text
Federer 5-7 3-6 6-5 Djokovic
A woman in the crowd holds aloft a Swiss flag - but she looks like she is about the burst into tears. Fed nails a quality volley but nets next point, to leave him precariously positioned at 30-30. A fine forehand earns him game point, and Djoko cannot return the next one. Good hold from the champ.
Federer 5-7 3-6 5-5 Djokovic
Djoko holds his nerve big time with an ace and a pounding forehand and after Fed pulls one back, he simply takes more time and launches two more unreturnable serves.
Federer 5-7 3-6 5-4 Djokovic
Quality use of the court from Fed and after a double fault, he hits the line with a forehand - he could not afford to miss that. Djoko goes long and then drop-shots into the net after a phenomenal defensive backhand flick from Fed to stay in the point.
Federer 5-7 3-6 4-4 Djokovic
Fed is sensing a chance on Djoko's serve, but the young Serb is managing to keep him at bay and his first serve is just about holding firm. A double lets Fed in, but an unreturnable swiftly shuts the door in the champ's face.
1045: "Don't write Fed off yet. It will be a comeback of biblical proportions if he makes it. Think Matt Di Angelo on Strictly Come Dancing."
Zoran76 on 606
Federer 5-7 3-6 4-3 Djokovic
A magnificent backhand smash takes a bouncing Federer to 30-0 - he is trying to get himself going now. Djoko pulls it back with two power points, but then launches one long and Fed holds.
Federer 5-7 3-6 3-3 Djokovic
Fed puts some pressure on but Djoko defends brilliantly and the Serb races 40-0 up. But Fed's defence is tested to the full and Djoko opts for a drop-shot at 40-30 - bad idea. He manages to hold with some sturdy defence, but Fed is still not middling much out there.
1035: "Looks like another Fed has cut its rate this week."
Sebwinder on 606
Federer 5-7 3-6 3-2 Djokovic
A whipped forehand puts Fed 30-0 up and he leaves a long one, before wrapping up his easiest service game for a while with an ace. Can he now put pressure on the Serb's serve?
Federer 5-7 3-6 2-2 Djokovic
When Djoko increases the pace, Fed cannot stay with him. He holds to love and the Swiss needs to find a few extra gears here if we are even going to have a fourth set.
1030: "Novak must win this third set, or Fed will steamroller it. Djoko must go for the juggular or Fed will come back to bite him."
David, France, via text
1029: "I dont think I've ever seen Federer play so bad. It's like he can't be bothered to play and is just letting everything go."
TopGunnerChrissy on 606
Federer 5-7 3-6 2-1 Djokovic
It's good point, bad point for Fed. A lovely winner followed by an unforced error. Djoko climbs all over a second serve to go 15-40 up - Fed easily saves the first break point and then Djoko goes long to go to deuce. Fed then leaves a shot that flies into the corner of the court but Djoko misses one chance down the line with a backhand and then goes long. Fed holds, but my word is he hanging on now.
Federer 5-7 3-6 1-1 Djokovic
Djoko slams wide after a thumping rally and then goes long, before another poor forehand goes wide and hands Fed three break points. The Serb produces one huge serve before Fed blazes off target with a backhand and then an ace saves the last. Djoko increases the tempo in a Federer-like manner and holds with an ace. Gutsy.
Federer 5-7 3-6 1-0 Djokovic
Fed looks a bit more lively, but Djoko finds his range with a glorious forehand right into the corner. The Swiss manages to hold, but it's not comfortable by any means. He needs a break to boost his flagging spirits - and he needs one sharpish.
1012: "Notwithstanding who we want to win, the one thing the latter stages of this tournament have not had is a close, good match. Tennis lovers must want Federer to pull himself together here and make a game of it. If he does this could become a classic."
King of the Biscuits on 606
Federer 5-7 3-6 Djokovic
Bang. Fed dominates a rally and then thwacks a brutal forehand cross court, but he misses a golden chance to go 0-30 up and then Djoko nails one, before the Serb goes long - 30-30, tense times. A massive unreturnable serve gives him set point, but Fed destroys a forehand to take it to deuce. Djoko then gets a time violation but he produces two big, big serves to go 2-0 up. Is this one all over bar the shouting?
Federer 5-7 3-5 Djokovic
Where has the real Roger Federer been hiding? A brilliant serve-and-volley, a couple of big first serves and a fine forehand down the line help him hold and there's a bit of pressure on Djoko now to serve for the set.
1003: "Cant believe anyone is doubting Fed the legend to win in 5!"
Big G, via text
Federer 5-7 2-5 Djokovic
I can barely believe what I'm seeing. Just as it looks as though Fed's gone, he produces a gorgeous forehand to go 15-30 up. Djoko nets under fierce pressure and then has a shot called long - but he questions the call and the ball was good. We go to deuce and Djoko flies wide before a sumptuous Fed floater down the line gets him a break back.
0956: "Is the Fed Express about to go off the rails? Let's hope so."
bon-nadal on 606
Federer 5-7 1-5 Djokovic
Djoko blazes another clean winner past a shell-shocked Fed and Mirka looks less-than-pleased in the crowd. Her man goes way long once again and Djoko secures another break with a thumping forehand Fed doesn't even look twice at. Totally rampant now, the Serb.
Federer 5-7 1-4 Djokovic
Every time Fed has a sniff, he blows it with an unforced error. Djoko is not in the mood to give him too many chances and he serves big to extend his advantage. Djokovic has won eight out of the last nine games now, remarkable.
Federer 5-7 1-3 Djokovic
Fed nets twice to go 0-30, but Djoko tries a cute volley and nets. Fed lashes a wild forehand off court to go break point down, which he saves with a magnificently-worked point ending with a top-drawer smash. But Djoko powers his way to another break point and then takes the game with a remarkable pick up and backhand down the line. Sensational stuff from the young man.
0943: Thanks to everyone for answering the question at 0935 correctly, it was of course the Australian Open final in 2005, when Marat Safin beat Leyton Hewitt.
0941: "Fed's losing but he's the architect of his own downfall right now. The amount of shots he's netting or hitting long is just silly."
Blue_Phoenix on 606
Federer 5-7 1-2 Djokovic
Fed is just not hitting now with any of his big shots. Djoko is being aggressive in his movement and he races 40-0 up. But the Serb tries a through-the-legs showboat shot and Fed takes it to 40-30, before an ace gives Djoko a get-out-of-jail card.
Federer 5-7 1-1 Djokovic
Djoko is making Fed do all the running, but the champion produces some quality defensive tennis to secure his first game in what seems like an age. He celebrates by doing some limbering up.
0935: "When was the last time a Grand Slam final was contested without either Nadal or Federer playing in it?"
On Tsonga, via text
Federer 5-7 0-1 Djokovic
Djoko is sending Fed's sprawling forehands back with interest and the Swiss has gone totally off the boil. Five games on the spin and the world number one needs to sort himself out.
Federer 5-7 Djokovic
Djoko is timing it nice now and only misses a big backhand by a fraction that would have taken him to 15-30. But he stays strong and Fed goes long to give Djoko a set point, which Federer smashes way past the baseline. Four games in a row for the Serb, are we on for an upset here?
0927: "Who do you fancy in the women's final then? A tough call for the guys that one."
WUSCHLI on 606
I think it's best for everyone if we focus on the guys for now. I just don't know how to answer that question in a BBC-friendly way.
Federer 5-6 Djokovic
Djoko gets excited - he double faults, before Fed hits a frankly ridiculous backhand down the line that you'd have to super slow-mo to even see. But Djoko out-rallies his more illustrious opponent once again and now the pressure is on Federer to stay in the set.
Federer 5-5 Djokovic
Fed misses two standard forehands, but a quality first serve produces the Swiss's first "come on" of the day. Remarkably, Djoko out-manoeuvres the world number one and Fed hits two more unforced errors to hand the Serb his break back.
0919: "I've sat in the far corner of my office so no one can see my screen, watching the tennis on BBC of course. Novak in five!"
Luka, London, via text
Federer 5-4 Djokovic
Stunning - Federer produces an impossible backhand at an angle that didn't even exist a minute ago. Djoko is left motionless, speechless and pointless. But the 20-year-old gathers his thoughts and fights back well, with some big serves and a crunching cross-court backhand winner to stay in the set.
Federer 5-3 Djokovic
Federer has upped his game in a big way as we get to the business end of the set and moves to 30-0, but two cracking winners from Djokovic get him right back in the mixer. A return into the net infuriates the Serb but Fed double faults to take us to deuce. An ace and a Djoko later and Fed has held.
0910: "Are any of them wearing squeaky shoes?"
Jer, via text
There's a fair bit of squeak out there for sure, but let's hope no-one goes on about it this time.
Federer 4-3 Djokovic
Federer hits a backhand right out the middle of the sweet spot down the line before Djoko goes wide on a forehand, 0-30. Two big Serbian serves levels it, but he blazes another one miles wide and then the Swiss grabs a crucial break after a nervy rally with both guys clipping the top of the net.
Federer 3-3 Djokovic
Fed mis-times a forehand way long before he ends a top-drawer rally with a dominating smash. The Swiss is a funny mix of stunning timing and careless mistakes at the moment, but he sees the game out in relatively comfortable fashion nevertheless.
0902: "We're off! I have a feeling Djoko is adopting a tactic of putting the Fed man under pressure by charging to the net. Well, let's see how it works out."
Maxxfoot on 606
Federer 2-3 Djokovic
What an easy service game that was for Djoko, put under no pressure at all by Federer and holding to love.
Federer 2-2 Djokovic
Federer slashes a forehand well wide and then nets a routine backhand and a routine forehand to provide Djokovic with an opening at 15-40. But the Serb goes long and then cannot return a down-the-line first serve and it's back to deuce. An angry Djoko goes long again twice and one potential break is averted.
Federer 1-2 Djokovic
A very impressive hold that from the young Serb, not unnerved by his first double fault of the day. Federer nets a return and then goes long at 40-30. Djokovic's first serve appears to be working well.
0852: "Just as well there's tennis on this morning otherwise I'd have to do some work. Federer to win in four."
Euan, Edinburgh, via text
Federer 1-1 Djokovic
With minimum fuss Federer holds, not much wrong there from the three-time Australian Open champion. Djokovic nets and we're level.
Federer 0-1 Djokovic
Federer lays down a marker with a cross-court forehand right into the corner and my word is that thumping backhand in full flow already as he out-powers the Serb. But Djokovic keeps his cool with a couple of good volleys and an ace and holds.
0845: "Time". Djokovic to serve first. Here we go.
0844: "Guess they're slugging it out for the runners-up cheque. Never thought I'd say that about Federer!"
Andy, Berkhamsted, via text
0842: "Beating James Blake was good, it was an entertaining match. I hope to back it up with another good one today," said Federer. I reckon we're not far off starting, then, as the players go through their warm-up.
0840: "It has been an amazing two weeks for me, I've been playing at a very high level, hopefully I can continue that tonight," said Djokovic as he prepared to walk out on court.
0834: As always, I'd love for you to get involved in today's proceedings - it really is the more the merrier. Text your views on 81111, or get involved on 606. I especially want you guys who have never got in touch before. Go on, do something new today...
0831: Roger Federer is about to step on court for his 15th Grand Slam semi-final in a row, a sensational record. He says recent talk about him losing his grip on the world number one slot does not bother him. "I've heard it before and don't read it anymore because it's the same thing over and over again," said the 26-year-old.
0827: "Things have gone well so far," said Federer. "So far things have gone well," said Djokovic. Let's hope there's nothing to separate them on the court as well as off it.
0824: So now it's the turn of defending champion and three-time winner of this tournament, Roger Federer, and the number three seed, Novak Djokovic. The Swiss master has a 5-1 record over his young Serb apprentice - but will that count for anything today?
0822: In case you've been frozen in carbonite for the last day, you will of course be aware that Jo-Wilfried Tsonga wiped the floor with second seed Rafael Nadal on Thursday to book his place in the Australian Open final.
0820 GMT: Morning. Hope you slept well. This one should be a real crackerjack, two boys slugging it out for the right to face the Muhammad Ali of tennis. Huge.