Two-time champion Novak Djokovic beat Kei Nishikori in straight sets to reach his eighth final at Flushing Meadows.
Wimbledon winner Djokovic kept Nishikori under relentless pressure, carving out 17 break point opportunities and winning 80 per cent of his own first serve points to win 6-3 6-4 6-2 in two hours and 23 minutes.
The 31-year-old Serb improved his head-to-head record against Japan’s Nishikori to 15 wins from 17 meetings.
He goes on to face third seed Juan Martin del Potro, who led defending champion Rafael Nadal by two sets when the Spaniard retired with a knee injury.
Djokovic is looking to win back-to-back major titles following his Wimbledon victory two months ago, and join Pete Sampras on 14 Grand Slam singles titles.
“It means the world to me. I am trying to be the best that I can be,” he said.
“I am working hard every day and trying to reach certain heights that I visualise every time I accomplish something big.
“I don’t see any limits. I keep on going and hopefully you are enjoying my tennis.”
Nishikori hit 51 unforced errors as he failed to make any impact on the Djokovic game, with the world No.6 breaking serve at the first opportunity and taking charge of the second set from 2-2.
Djokovic has now reached 23 Grand Slam finals and by doing so secured his place at the end-of-season ATP Finals in London.
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