Andy Murray began his 2013 US Open campaign with high hopes of repeating as champion at a tournament where he earned his first Grand Slam title just a year ago, but the No. 3 seed was unable to get it going for his quarterfinal matchup against Swiss player Stanislas Wawrinka on Thursday afternoon, losing in straight sets 6-4, 6-3, 6-2.

Wawrinka—who trains with Roger Federer and is ranked No. 10 in the world—is no slouch on the tennis court, and he showed just that, taking control of the match early, and not letting up the rest of the way. Where Murray struggled to get both his service and return games going, Wawrika was clicking on all cylinders.

Wawrinka had an incredible 45 winners to Murray's 15, and managed to break the defending US Open champion's serve a total of four times to take a commanding lead. Thursday's win is by far the biggest of Wawrinka's career, and the first time he's advanced to the semifinal round of a major tournament.

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