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US Open: Andy Murray ousted by Stanislas Wawrinka

Switzerland’s Stanislas Wawrinka celebrated Thursday after defeating Andy Murray during a quarterfinal match at the US Open.

Andrew Gombert/EPA

Switzerland’s Stanislas Wawrinka celebrated Thursday after defeating Andy Murray during a quarterfinal match at the US Open.

NEW YORK — After one set, Andy Murray slammed his racket into the court, then mangled it once he reached his chair on the sideline. After the second, he gestured over to his coach, Ivan Lendl, and let out a frustrated scream.

Stanislas Wawrinka had the US Open defending champion in knots all day, and when the surprisingly short, less-than-competitive match was finished Thursday, Murray was a 6-4, 6-3, 6-2 upset loser in the quarterfinals at Flushing Meadows.

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‘‘I would have liked to have played a little bit better,’’ Murray said after rushing off the court and into the interview room to explain the loss. ‘‘I’ve had a good run the last couple of years. It’s a shame I had to play a bad match today.’’

Ninth-seeded Wawrinka made his first Grand Slam semifinal, earning a spot in the final four for Switzerland that for so long felt like Roger Federer’s birthright.

‘‘It feels amazing for sure, especially here,’’ said Wawrinka, who didn’t face a break point over his 14 service games. ‘‘Especially after that match. He’s the defending champion. He’s a tough opponent.’’

Wawrinka will play No. 1 Novak Djokovic. Djokovic quickly overcame a one-set lull to reach the semifinals for the seventh consecutive year, beating 21st-seeded Mikhail Youzhny of Russia, 6-3, 6-2, 3-6, 6-0.

Djokovic, the 2011 champion at Flushing Meadows, won his first four matches of the tournament in straight sets. But he faltered in the third set of his quarterfinal against Youzhny , making 16 unforced errors and getting broken twice. Djokovic will be trying to reach his fifth US Open final. In addition to his title, he was the runner-up in New York in 2007, 2010 and 2012.

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It’s also the 14th consecutive Grand Slam tournament where Djokovic is in the semifinals, a 3½-year streak.

The other semifinal is No. 2 Rafael Nadal against No. 8 Richard Gasquet.

Djokovic is 12-2 against Wawrinka.

This was Murray’s earliest exit from the US Open since 2010, when Wawrinka also did the honors — that year in the third round.

Murray conceded it’s been a long road since he broke into the top, first at the Olympics on home turf last year, then with the two major titles.

‘‘When you work hard at something for a lot of years, it’s going to take time to fire yourself up and get to training 110 percent,’’ Murray said about his preparation for the year’s final Grand Slam. ‘‘That’s something kind of natural after what happened at Wimbledon.’’

An amazing letdown, especially considering the numbers he has been putting up of late.

He had appeared in the finals of the previous four major tournaments he entered (he missed this year’s French Open because of a back injury).

He had won 30 of his last 32 Grand Slam matches.

He had been 7-0 on hard courts in major quarterfinals.

This marked his first straight-set loss in a major since the semifinals of the 2011 French Open, when the opponent was Rafael Nadal.

‘‘If I'm meant to win every Grand Slam I play or be in the final, it’s just very, very difficult just now,’’ Murray said. ‘‘With the guys around us, it’s very challenging.’’

Wawrinka is certainly one of those guys now.

He played near-flawless tennis, especially considering the windy conditions that had the ball warbling all over the place. Wawrinka had 45 winners to 15 for Murray.

His serve averaged 119 miles per hour — 9 miles per hour faster than Murray — and he won 37 of 42 points in which he got his first serve into play.

Wawrinka also charged the net, not allowing Murray to get comfortable while trying to figure out the windy conditions on the baseline. Wawrinka won the point on 31 of 42 trips to the net, including 10 for 10 in the third set.

‘‘I thought there was a few long points, but I didn’t get into enough return games, which is disappointing for me,’’ Murray said. ‘‘That’s normally something I do pretty well. I always give myself opportunities to break serve, and I didn’t today.’’

Murray is under constant scrutiny back home in Britain, where his quest to break through in a Grand Slam, then to break that country’s 77-year drought for a men’s champion at the All England Club, became an almost all-consuming topic at times in the London tabloids.

But before this US Open began, Murray seemed amazed by how many off-court commitments a defending champion needs to deal with at Grand Slam time.

Still sweating as he sat behind the microphone not 15 minutes after the loss, Murray was trying to look at the bigger picture.

‘‘Look, I can’t complain,’’ Murray said. ‘‘If someone told me before the US Open last year that I would have been here as defending champion having won Wimbledon and Olympic gold, I would have taken that 100 percent.’’

For about a decade, men named Federer, Nadal, Djokovic, and Murray have dominated the latter stages of major tournaments. That quartet won 33 of the past 34 Grand Slam titles, but two are gone from the field already.

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