Image source, EPA

So it was job done for Andy Murray - and in some style. Aside from dropping his serve once towards the end of the third set, the Briton looked razor-sharp throughout.

He'll face a tougher challenge in Tomas Berdych in the next round on Thursday, but if he can continue this form and carry this momentum, the 27-year-old will be a tough man to beat.

Thanks for your company. It's been a pleasure. Until next time, it's good morning from me. Bye!

If you want to catch up on the match and can't face going through this live text commentary, I'd suggest reading Piers Newbery's developing report.

That's all the singles play done and dusted for the day, with Andy Murray next in action on Thursday.

But before that, what a day of tennis we have in store tomorrow. Venus Williams will continue her renaissance when she takes on fellow American Madison Keys at 00:00 GMT.

She'll be followed on court by her sister and top seed Serena, who plays 11th seed Dominika Cibulkova. Defending champion Stan Wawrinka follows against Kei Nishikori.

And four-time Australian Open Novak Djokovic headlines the night session when he takes on eighth seed Milos Raonic.

Alice Stainer:, external Sounds like Murray was 'lobbing' grenades at Kyrgios. Great stuff. Next match could be a spicy one given Vallverdu connection...

Catie Craig:, external So thoughtful of Andy Murray finishing in time for me to get to my gym class. Plus great post match on court interview.

Matthew Fowell:, external Having now beaten two Australians, Murray is not exactly ingratiating himself with the partisan crowd!

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

"I don't know who will win between Murray and Berdych - it's a tricky one to call.

"Murray has got to serve as well as he did today. Berdych hits the ball well, he's higher risk, he hits the ball flatter and Andy has got that safety element.

"But Berdych hasn't won a Slam so I suppose that gives the edge to Murray. One thing is for sure...it's going to be a ripper."

Andy Murray on his semi-final against Tomas Berdych: "It will be another tough match, Thomas is another big, big hitter of the ball. He has played extremely well throughout the tournament - I don't think he has lost a set yet. It is going to be tricky."

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Andy Murray on the home support for Nick Kyrgios in Melbourne: "Understandably Nick got great support from this crowd and to play in front of packed court, with some wonderful players watching on, is wonderful. It's a privilege. Hopefully I can keep it going in next round."

Murray's combination of a higher winner count of 48 to Kyrgios' 36 and low unforced error total of 28 to Kyrgios' 38 was the story of the match today. Meanwhile, the Briton had nine break point opportunities, taking three, while his Australian opponent managed just one from two - and they didn't come until the third set.

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Andy Murray: "It was a tricky match pretty windy, tough for both of us. I had to start as quickly as possible, I knew what he is capable of and didn't underestimate him. Nick is a huge hitter so I tried to keep the ball out of his reach. I played a slightly different style tonight - and thankfully it worked."

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

"Great performance from Andy Murray. He kept the pressure on Kyrgios, he served well and didn't give him many short balls. By and large he didn't let him get into the match. In the end, the groundstrokes were really dominant. Murray is still going to be fresh for the semi-final - he has only dropped one set - that's what he needs at this stage of the tournament."

Image source, Getty Images

Andy Murray throws his sweatbands into the crowd, waving to the fans in appreciation and then applauding Kyrgios as he walks off court. The 27-year-old will now contest his fifth Australian Open semi-final and 15th semi-final at a Grand Slam. Tomas Berdych, who beat Rafael Nadal earlier today and who recently hired Murray's ex-coach Dani Vallverdu, will be his opponent in the last four.

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After a brave performance, Kyrgios looks to have run out of gas as a backhand from Murray sails past for 15-15. The Australian sprays the ball into the tram-lines in the next and then finds himself facing match point as Murray hits a forehand winner. And It's another forehand winner, this time down the line, that seals it. Murray wins.

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

"Two very good points by Andy Murray to finish that off. Even champions lose concentration but what they do is bounce back really quickly from a setback."

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Kyrgios looks reborn, bouncing up from his seat at the changeover and racing to a 30-0 lead on his serve.

But Murray snatches the next and then delivers the kind of defence which has seen him win the big matches, stretching this way and that, doing anything and everything to get the ball back before conjuring up some magic with a delicate top-spin pass which skips past Kyrgios. Back to 30-30.

Soon we're at deuce, the crowd chanting in between points in support of their man Kyrgios. But they can do nothing to help Kyrgios stop a whipping forehand pass glide by for break point.

Murray drags Kyrgios from side-to-side before the Australian can run no more and dumps a forehand into the net. Murray breaks. He will now serve for the match.

Joel, Pembrokeshire: Wasn't expecting that from Kyrgios! Wow! This could be a long, and brilliant match!

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

"Kyrgios is still alive - that was a poor game from Murray. The drop shot was a shocker, he clunked it barely halfway into the net. It has got Kyrgios back into the match and this is exactly what Murray didn't want. He got himself into position, quietened the crowd and had Kyrgios kicking himself."

There's an opening for Kyrgios as he gets 15-30 on the Murray serve before play is disrupted while a ball girl retrieves an insect which is flittering around the Briton's feet on the service line.

The Briton wins the next point, but then gifts Kyrgios his first break point of the match by spraying a backhand wide! But the Australian frames his next return, looping the ball high in the air.

It lands in and Krygios chases it to the net putting his racquet out in front of him to shield himself from the incoming smash. Murray does well not to hit the Australian, putting the ball away to win the point.

But a forehand error from Murray is followed by a backhand in the net and Rod Laver Arena erupts. Krygios breaks. He's not done yet.

Piyal:, external Andy Murray playing fantastic. Looking fit and firing and playing great on the big points. Come on Andy!!!

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

Image source, Getty Images

"That's an outrageous defensive lob which somehow got over Kyrgios. Murray did the right thing and followed it into net. Murray has hit three of the best lobs I've seen in my life during this match.

"But Kyrgios has primarily lost that break because he was screwing around with that between-his-legs shot into the net at 40-30. He has got to realise he can't do that against these guys."

Murray gets his first real chance in this set as he hauls Krygios back from 40-0 up to deuce and then gets a break point when the Australian double-faults. Could this be the end for the 19-year-old? Oh no! A big forehand saves it.

Another break point. But that's saved, too. Now a third for the Briton. Kyrgios tries a shot between-the-legs as he scrambles to keep himself in play, but unlike the winner he hit against Rafael Nadal at Wimbledon, Murray puts this one way.

Murray breaks and is now just two games away from a semi-final with Tomas Berdych.