The 10th seed came through his second straight four-hour match to win 3-6 7-5 7-6 (9-7) 7-6 (5-7) 6-4 and book his place in the last four at Flushing Meadows.
It’s great for my confidence, playing two five-sets straight
“I’m very honoured to make the history,” said Nishikori. “I always love to play here because I feel a little bit like home, you know. It’s very close to where I live.”
The 24-year-old continued: “It’s great for my confidence, playing two five-sets straight. It was a tough game, especially after losing fourth set.
“It was a very close tiebreak but I was playing much better in third and fourth and I have more confidence to get in the fifth set.
“So I tried to focus on my service game. I just took one chance in the end.”
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