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Andy Murray dropped just five games to progress to the quarter-finals of the US Open at Flushing Meadows.
The Scot had looked below his best against Paolo Lorenzi in the previous round but there were no such worries this time as he defeated Grigor Dimitrov 6-1 6-2 6-2 to set up a quarter-final meeting with Kei Nishikori.
Dimitrov was made to pay for a large number of errors, losing his serve to hand Murray a 3-1 lead in the opening set and the Wimbledon champion won the next six games to take complete control of the match.
Both players exchanged breaks of serve midway through the second set but Dimitrov was unable to consolidate his advantage as Murray served out to take a 2-0 lead.
Murray continued to punish his opponent and even a brief rain delay did not halt his momentum as Murray cruised into the last eight.
"I played extremely well," said Murray. "Tactically I played a good match, made very few unforced errors and made it tough for Grigor."
The match included Murray's fastest ever serve of 141mph and when asked about the milestone, the Scot said: "I served one at 145 in San Jose, but the next day they recalibrated the gun, because it was completely wrong.
"But that is definitely the fastest serve that I have hit. I think the other fastest serve I hit was here at the US Open, around 138.
"But I've never hit over 140, so I think it was lucky. I only did it once, so I'm not expecting to do it again."
Stan Wawrinka and Juan Martin del Potro will meet in the quarter-finals after the respective wins over Illya Marchenko and Dominic Thiem respectively.
Del Potro looked to be in control of his last-16 encounter when Thiem was forced to retire midway through the second set while trailing 6-3 6-2, but Wawrinka was made to work harder for his 6-4 6-1 6-7 6-3 victory.
"It's going to be great to play. He beat me this year at Wimbledon. He's back after so many injuries, so it's good to see him playing so well again," Wawrinka said of Del Potro.
"It's going to be a great challenge for me to play him here on the hard court for the first time. Excited to play against him and hopefully I can keep going here."
There were contrasting fortunes for the Williams sisters as Serena booked her place in the quarter-finals on the same day that Venus bowed out of the tournament.
Serena Yaroslava Shvedova 6-2 6-3 to record her 308th Grand Slam match win, a victory that takes her past Roger Federer's previous record. Next up for the six-time champion is a meeting with fifth seed Simona Halep.
Meanwhile, Venus' tournament is over after she was beaten 4-6 6-4 7-6 by Karolina Pliskova.
After winning the opening set, Williams was broken midway through the second to allow Pliskova to take the match into a deciding set.
Pliskova had the opportunitu to serve for the match at 6-5 but Williams managed to save a number of break points to force the tie-break. However, Pliskova was too strong for her opponent and took it 7-3 to set up a quarter-final date.
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