Nishikori to reach US Open semis read more at here www.spinonews.com/index.php/item/799-nishikori-to-reach-us-open-semis

Nishikori, who became the first Asian man to reach a grand slam final when he finished runner-up here in 2014, broke the Scotsman in the 11th game of the fifth set with a brilliant reflex and served out to complete the achievement.

Murray hit a low point in the fourth set when Nishikori was serving at 1-1. The world number two held double break-point at 15-40 when chair umpire Mariana Alves called a let and a replay during a point Murray was controlling because of a loud intrusive sound from the public address system.

Murray was annoyed because when he had complained of a sound disturbance earlier in the match, the umpire said in such instances the players would play on.

 Between the changeover Murray complained to the tournament supervisor and when play resumed he never won a game again until he was down 0-2 in the fifth.

"I'm not too disappointed. It was a good match," he told reporters. "Disappointed not to have won, but I've had a good run. I would've loved to go further but that wasn't to be today."

Murray had been masterful in the opening set, taking Nishikori's second serves early to put the Japanese sixth seed on the defensive, while benefiting from his 14 unforced errors.

Nishikori will meet either double grand slam winner Stan Wawrinka or 2009 US Open champion Juan Martin del Potro in the last four at Flushing Meadows.

The Japanese tried to defeat the world's most in-form tennis player 1-6 6-4 4-6 6-1 7-5 in four hours.

Murray had won 26 of his last 27 matches to close the gap in ranking points on top-ranked Novak Djokovic and was keen to earn the No. 1 position at some stage this year. His unexpected reverse is a major setback.
 He picked on Murray's second serve -- Murray's percentage of points won behind the second delivery dipped to 21 in set four -- and for the most part, sparkled at the net.

Murray took issue with the roof not being reopened when the weather improved. At Wimbledon, for example, when the roof on center court is used during a match it must stay on for that match.

"It was the fourth time it had happened in the match and it was the first time that we stopped the point," said Murray, the 2012 US Open champion. "I was just curious as to why that was, and that was it." Murray made it 2-2, only for Nishikori to lead 4-2.