Murray is laughing. I repeat, Murray is laughing. But I suspect it is an ironic chuckle rather than delight at how he played in that third set.

Cheers Aimee, Jonathan Jurejko here again. I've got a 100% record - one set, one Murray win. Can the Briton do the magic again under my watch and take this to a fifth? Let's find out...

Australian Open officials have released a statement after the earlier protests. It says: "Two people have been arrested after a court invasion during the second set of the men's final. Security responded immediately. Both were quickly removed with minimal disruption to play."

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Murray needs to find zen-like calm if he is to trouble Djokovic in this game because the red mist is clouding his judgement. At 15-15, momentum could go either way but Djokovic is bossing it from the baseline and Murray slaps a forehand into the tape, his 12th unforced error of the set.

Murray, running across the baseline, stretching at a forehand which he biffs into the net. Djokovic can smell the third-set finishing line approaching. The Serb serves to the wings, Murray flaps at a return. Boris Becker is on his feet. Two sets or out for Murray.

Murray's feet not quite moving in unison as he drags a backhand into the tramlines. 0-15. Murray misses a forehand, he's going through one of his dips and directs verbal arrows towards his camp. "So unhelpful," he yells. Djokovic pounces on a tired Murray volley, unleashing an irretrievable crosscourt volley. Three break points. Yikes.

Djokovic long on the return which gifts Murray a point, but it's a temporary reprieve as he coughs up a double fault. Murray has lost his cool. Has he lost the set?

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Activetots: This is like watching a Rocky Balboa fight.

A seventh ace of the match from Djokovic for 15-15. An eighth ace of the match from Djokovic 30-15. But he fails to get his first serve on target on the next point and Murray gobbles up the short second serve, setting himself up for a slam dunk of an overhead. 30-30. Nail-biting stuff.

More tension as the pair absorb shots from the baseline before Murray creeps inside the court and bashes away a down-the-line-forehand for a break point - his 11th of the match.

Djokovic with the drop volley... Murray racing towards the net like a greyhound out of the traps... he has speed but no precision and is unable to direct the volley over the tape, momentum taking him towards Djokovic's side of the court. The world number one out of jail and he lifts his arm, urging the crowd to raise the volume. Djokovic pulls through, Murray ending matters with a slapped return into the tape.

Image source, AP

At 15-0, Murray pulls Djokovic this way and that on the baseline, forcing the Serb to dance to his tune. A super-duper Murray forehand kisses the baseline and Djokovic must produce something special to break the Scot from here. Murray the master marksman, solid serving from the Briton, ending with a touch of razzle-dazzle, a whirring ace.

Andy Murray's brother Jamie Murray writes on Twitter:, external "Two hours 30 minutes for two sets. These guys are a different breed. Who can continue to keep this level longest?"

David Law
BBC Radio 5 live commentator

"These two are freaks of nature. I'm exhausted after talking quickly about just one of those sets. Imagine two hours 47 minutes of running, lunging."

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Djokovic experiencing a revival of sorts. He seemed down and out at 2-0 down, but having fought back to level he's producing some exquisite shots again. A marvellous forehand down the line moves him 30-0 up, but Murray drags himself to 30-30. It's like watching a pair of giraffes fighting in the wild; swinging at each other until one, eventually, hopefully, ungracefully falls. Djokovic nips ahead... On the next point, he sends Murray into the darkest corner of the baseline and Murray can't loop his forehand on target. Three straight games for the top seed.

Two-time Olympic swimming gold medallist Becky Adlington on Twitter:, external "Ah what a game of tennis this is. Pure class from both guys."

Missed the drama of the second set tie-break? Shame on you. Luckily you can watch every second again. Go to the 'Highlights' tab on this page to relive the excitement.

Pat Cash
1987 Wimbledon champion on BBC Radio 5 live

"How frustrating for Andy Murray and he is livid with himself."

Djokovic attacking the Murray second serve and his reward is a crosscourt winning return for the opening point. Both players sweating like racehorses, which isn't much of a surprise as they're a smidgeon short of the three-hour mark. Trouble for Murray at 0-30, but he hauls himself back into contention as Djokovic goes long on the next return. The Murray backhand is his foe as he slaps it into the net, presenting Djokovic with two break back points.

Plenty of pop on the Murray serve as it zips for an ace. One break point saved. Can he save the other? Deary me, no. He swings wildly on the forehand and we're level again.

James Pickard:, external Come on Murray. He's back in it now. Nearly as much suspense as London 2012 final. This is Grand Slam tennis at its best.

Ben Krizan:, external Hands down the best match of tennis I have watched, completely different Murray from last season.

Dan Tipp:, external Fallen off edge of seat. Cancel rest of morning - kids' homework will have to wait.

Djokovic pulls Murray towards the tape and the Scot falters, an iffy forehand and into the net she goes. A collective groan from the spectators. The top seed 30-0 up and in control. Another easy point followed by a well-timed backhand into the corner winds up the game.

Three-time Australian Open men's doubles winner Todd Woodbridge writes on Twitter:, external "This is sci-fi tennis. How do they keep up this intensity?"

Image source, Getty Images

Fine serving from Murray, serving up an ace to the wings for a 40-0 lead, and he hurls another cool ace down the 'T' for a convincing hold, as if to tell Djokovic: "What have you got left, punk?"

Our very own Sue Barker is backing Murray to triumph (even before that latest break) - but who are you going for? Make sure you take part in our vote which you can find on the right side of this page (desktop) or in the glitzy yellow tab at the top (mobile). You've got until 12:00 GMT to cast your vote and the result will follow shortly after.

Image source, AP

Djokovic needed a toilet break after that second set tie-break and who can blame him. The Serb returns and we're back in action. Balletic and brutal from both players. An array of colourful shots from Murray, wrong-footing Djokovic and seeing his rival off with a sweet backhand. The Briton 0-30 up. Both playing on reserves of energy, digging deep.

Two break points Murray and Djokovic folds like a deckchair in the wind. Biffing a straightforward forehand into the net and he slips onto the canvas. The Serb treads back to his chair with the look of a man who has already gone 12 rounds and thrown his best punches.