John Lloyd
1977 Australian Open runner-up on BBC Two

"Berdych is struggling with his first serve percentage now. The crucial thing in that set was the three double faults by Berdych, particularly two going in that game where he was 40-0 ahead. It was a strange game with someone of Berdych's experience doing that.

"Murray served very well and dominated but that was a gift at this level - and you take it with both hands."

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Whoosh! That's the sound of a Murray ace, his eighth of the match, hurtling down the middle for 30-15. The Scot untroubled, although Berdych unleashes a venomous forehand winner to show that he still has some tricks up his sleeve. But a riled Murray responds with a bazooka of an ace to the wings and the British number one is a set away from a fourth Australian Open final.

Berdych serving to stay in the set and, you sense, should he lose this set Murray will (should) march on into the final for a showdown against either Novak Djokovic or Stan Wawrinka. But let's not start counting chickens just yet.

At 40-0 Berdych double faults, but in this game he regains his composure, with a passive crosscourt drop shot from Murray, allowing the Czech to hold to 15.

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Rat-a-tat-tat. How easy was that? A nod of approval from Kim Sears, she then clenches her fist as Murray holds to love. Berdych's sparkle has been dimmed.

John Lloyd
1977 Australian Open runner-up on BBC Two

"That was a gift for Murray. In the end he had to work hard but it was the sort of game where if you're Berdych and you lose the match, your coach will say afterwards: 'What were you thinking?'

"Berdych was 40-0 up, made two double faults, then a forehand error. He basically handed that break over to Murray. Now he is in big trouble."

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The third set has turned into a game of chess. Both players serving with gusto, matching the other game for game which spectators are forced to wait until someone makes their crowning move.

Having said that, Berdych coughs up a couple of double faults and the door is slightly ajar for Murray. Berdych into the tramlines... Murray's tapping turned into a wallop of a knock...

A dreamy backhand return from Murray, a wrong-footed Berdych goes into the net, and from 40-0 down, the Scot has break point. The Scot wielding a hammer and preparing to bludgeon the door off its hinges... Berdych creaking, but his makeshift defence holding Murray off. For now.

A crosscourt forehand from Murray sets him up for a stunning forehand winner. Second break point. A baseline slug-fest ensues. From side to side they shuffle, supernaturally good from Murray, a thunderclap of a forehand and he's broken Berdych!

Donal, Co.Fermanagh: Come on Murray. Outstanding three sets of tennis so far. Unlucky not to take the chance to win the first set but been aggressive since then. Early break now in third set and I think Murray will take it in four sets.

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Dannii Minogue watching on from the posh seats, possibly impressed as Murray wins three points in succession. No sign of big sister, Kylie, however. We should be so lucky, eh. [Tumbleweed]. Anyway... A blip from the British number one as he hits a forehand into the tramlines, but it's a minor fault. Murray holds to 15.

Only two Czech men have reached the Australian Open final in the Open era. Should Berdych beat Murray today, he will become the first Czech player to reach the final since Petr Korda did so in 1998. Enough of the stats, though, because Berdych is racing through this game. A blemish-free hold from the seventh seed, not giving Murray a whiff of a sniff.

John Lloyd
1977 Australian Open runner-up on BBC Two

Image source, AP

"Murray looks very comfortable now. At the beginning he was on the back foot but he has been more aggressive since the start of the second set, keeping Berdych on the back foot.

"Berdych has somehow got to hold his serve and try something different on the Murray serve. At the moment he doesn't look like breaking his serve and getting back into this match."

Craig Williams:, external Glad I swapped shifts to nights tonight, hope this is done before mid afternoon nap!

Sue Tyhurst:, external Dogs crossing their legs and need to walk them before work at 1pm, Go Muzza!!

Paul Moody:, external Come on Andy! I've got a driving lesson at 1:20! Get it done in four sets please!

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I'm on my second warning because I've yet to mention that you can watch the first and second set highlights at the top of this page. There. I've done it. (Ed, the security guards take a few steps back now). At 30-15, Berdych finds himself in the line of fire, the sixth seed with an ace down the middle. The Scot 40-15 up and seals the deal with little fuss. "Come on," mouths Murray's fiancee Kim Sears as she proudly watches her beau.

Tom, London: Re Terry at 10.26. I'm 100% behind you mate. Tuned in for the tie break and Andy loses. Restricted myself to live text ever since and look what happens. Come on Andy!

Berdych has lost seven games on the trot and must stop the rot if he is to experience a revival in this match. Murray has a bucket-full of confidence at the moment, though, regularly visiting the net and it's one of those visits which forces Berdych to dribble a forehand into the tramlines. Questions being asked at 40-30... Berdych with a second serve... Murray's eyes light up... the Scot jumps in, but flashes his return into the tape. Opportunity missed.

John Lloyd
1977 Australian Open runner-up on BBC Two

"Andy Murray took the best that Berdych had in that game and still came out ahead. Berdych was hitting groundstrokes with pace, like he did at the start of the first, but Murray kept coming back."

The match may be level at one set all, but the vote tells a different story, with 72.2% backing Andy Murray to make his fourth Australian Open final.

Tomas, over to you to prove them wrong…

Image source, o

Image source, EPA

Here we go then. We're even-stevens. Level-pegging. Momentum has swung one way and then another. Berdych was on top, now Murray is king of the hill. The third set is a fresh start and the first blow goes to Berdych, but he doesn't have the lead for too long, a loose backhand return gifting Murray an easy point.

Berdych stepping in from the baseline, forcing Murray on his heels and crunches a forehand winner into the corner. There's fire in the Czech's belly once more. 30-30. "Come on," yells Murray, a familiar cry when an opponent falters and he wins a point. 40-30. The Scot dominant on the next point... forward he goes... feather-soft volley at the net... Berdych sent packing.

Former British number one Greg Rusedski:, external Wow! What a role reversal. One way traffic from Murray in second set. Let's see what Berdych is made of. We know what Murray is made of.

Piers Newbery
BBC Sport at Melbourne Park

"That got pretty ugly for Berdych from 30-0 in the second game, and he ended up with just one winner in the set compared to 16 in the first. Murray hit three fewer with seven but dramatically cut down the errors from 18 to three. Which all adds up to 6-0."

Pat Cash
1987 Wimbledon champion on BBC Radio 5 live sports extra

"Wow, I'd never have picked that one ending 6-0. Murray didn't do an awful lot, he applied a bit of pressure and Berdych unravelled.

"Murray started the set aggressively which is what he didn't do in the first. Berdych has disappeared off court - he'd be crazy not to disappear, go to the toilet and have a break. He lost his intensity."