Roundup: Murray teaches young Kyrgios lesson in Australian Open quarters

Teenage prodigy Nick Kyrgios found out just how much work it will take to be a world-class player like Andy Murray after the world No.6 comfortably defeated him in their Australian Open quarterfinal on Tuesday.

The first teen since Roger Federer - and just the 14th in the Open Era - to make multiple Grand Slam quarterfinals was stopped 6-3, 7-6(5), 6-3 by a clinical Scot aiming for his third major title.

Murray will now for the first time face off against his friend and former coach Dani Vallverdu, whose new student world No.7 Tomas Berdych dismantled Rafael Nadal in straight sets.

The energetic Kyrgios, 19, performed admirably but by his own admission, needs to step up his physical, mental and technical game if he is to reach the top-tier of tennis.

"He was way too good for me tonight," said the Australian who will jump into the top 35 on Monday.

The receiving Kyrgios snatched the first two points of the match but it was Murray, wary of the teenager's raw ability to pull off dangerous ground strokes, who broke first simply by frustrating the Australian.

Slicing to minimize the tricky wind, Murray continuously worked the ball out of Kyrgios' hitting zones.

Murray was even more ruthless during his own games, winning 80 per cent from his first serve and 67 per cent from his second.

"It's incredible how many balls he gets back into play," said Kyrgios.

"There were points I'd be winning five times over (against lesser opponents).

"(But) he'd be making me play an extra ball."

With trademark passing shots, Murray taught the aggressive Kyrgios that if he was keen to approach the net, he needed to volley better.

Then, noticing Kyrgios approach to close at set point in the tiebreak, Murray showed the Australian the true capability of an in-form world beater as the Scot placed another well-weighted lob safely inside the baseline to take a two-set lead.

Even experienced chair umpire Carlos Ramos tried his hand at educating the promising Australian: jumping on an audible obscenity within the first half hour.

But the Australian, after just his 29th ATP Tour match and a pre-season shredded by a back injury, again showed the tennis world why his high-energy style will shake up the established order.

"I'm really proud actually.

"Two weeks ago, I wasn't even sure I'd be playing the event.

"It has just been a massive couple of week just trying to get fit."

And just in case those at a packed Rod Laver Arena had forgotten his X-factor, Kyrgios dared to end an extended rally late in the second set with an audacious light forehand.

Murray also sung praises of the boy from Canberra, who has had to deal with local media scrutiny during his second Australian Open due in part to his on-court and off-court demeanor.

"I think he's quite respectful on the court in many ways.

"He does applaud good shots."

The 27-year-old Briton who knows a thing or two about enthusiastic home fans advised Australians "not to put too much pressure on him."

Murray has dropped just one set this tournament and now moves into the last four of Australian Open for the fifth time.

The three-time finalist can reach the final Sunday again if he can slid past Tomas Berdych, whose insight into the Scot's game will be significantly boosted with the addition of Dani Vallverdu.

Vallverdu was the No.1 Briton's friend, adviser and hitting partner until Murray's appointment of two-time Grand Slam champion Amelie Mauresmo late last year.

Vallverdu, unhappy he was not consulted about the new addition, chose to end his professional relationship with the world No.6 to prevent damaging their personal one.

"Definitely it might be an advantage for us," said the Czech who embarrassed Rafael Nadal with tactical nous.

The Scot dismissed the advantage of his former employee in the other box in Thursday night's semi-final.

"My goal isn't to beat Dani; my goal is to beat Berdych.

"I also know what Dani thinks of Berdych's game because he's told me, so it works both ways." Endi