Melbourne: Four-time champion Roger Federer took apart Mischa Zverev 6-1, 7-5, 6-2 with a clinical display of all-court tennis to reach his 13th Australian Open semifinal in 92 minutes on Tuesday.
Chasing an 18th Grand Slam title, and first since 2012, the 35-year-old Federer neutered his left-handed German opponent's serve-volley game to set up a last-four meeting with fellow Swiss Stan Wawrinka.
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Wawrinka engaged in a war of words with Jo-Wilfried Tsonga before winning the only argument that mattered, storming into the semifinals with a 7-6(2), 6-4, 6-3 win over the Frenchman.
Wawrinka bickered heatedly with the 12th seed during a change of ends after the first set before putting his aggression to better use, wrapping up the one-sided match in two hours and 15 minutes on a sun-bathed Rod Laver Arena.
Wawrinka, the 2014 champion, put in his most complete performance of the tournament against Tsonga, sending 41 sweetly struck winners whistling past the out-of-sorts Frenchman, a former finalist, but a shadow of his usual energetic self.
Looking in form as imperious as in his heyday of a decade ago despite missing the back end of last season after knee surgery, Federer is now one match away from a potential final against his old rival Rafael Nadal.
Wawrinka will want to have a say about that as will Nadal's quarterfinal opponent, Milos Raonic.
But with both Williams sisters also still standing in the women's draw, it would be easy to imagine it was 2007 not 2017 at Melbourne Park.
Zverev's serve-and-volley game is a throwback to an even earlier era and the world No. 50 contributed fully to an entertaining, if short, contest with his fine volleying and net play.
The unorthodox game helped the left-hander beat world No. 1 Murray on Sunday, one of two stunning upsets along with the early exit of Novak Djokovic that have opened up the draw for Federer and Nadal.
Against Federer, though, it took Zverev 15 minutes to hold serve and get on the scoreboard and by that stage he was already 5-0 down in the opening set.
The Swiss needed just four more minutes to wrap up the set with a leaping backhand at the net, but Zverev gradually found his touch and broke for 3-1 in the second set.
Federer broke straight back, but Zverev, who admitted after beating Murray that he had no Plan B, continued to charge to the net to greater and greater effect.
The Swiss took his time, though, and a couple of brilliant backhand passes gave him another break before he served out the set with less than an hour on the clock.
A third set riddled with deft shot-making went with serve until another Federer backhand gave him a break for 5-2 and a rasping crosscourt winner, his 65th of the match, sent him into a 41st Grand slam semifinal.
"I never thought I would get this far and here I am, still standing," Federer said.
"A semifinal against Stan, it couldn't be cooler."
Federer has been such an extraordinary player that he has all but lost the ability to shock with his feats on court.