|2018 US Open|
|Venue: Flushing Meadows, New York Dates: 27 August-9 September Coverage: Live radio coverage on BBC Radio 5 live sports extra; live text commentaries on the BBC Sport website|
Kei Nishikori overcame seventh seed Marin Cilic in a gruelling five-set match to reach the US Open semi-finals.
Both players struggled in an error-strewn encounter with high temperatures in New York again a factor.
Cilic made a dominant start to lead by a set and a break before his level dropped to allow Japan’s Nishikori to take a 2-1 lead.
Cilic recovered to force a decider but Nishikori edged through 2-6 6-4 7-6 (7-5) 4-6 6-4 in four hours eight minutes.
He will play either Serbia’s Novak Djokovic or Australian John Millman in the last four.
After Naomi Osaka reached the women’s semi-finals earlier, Nishikori’s win means there is a Japanese man and woman in the last four of a Grand Slam for the first time in the Open Era.
There was a subdued atmosphere on Arthur Ashe Stadium with the crowd struggling to get into the match.
Both players hit comfortably more unforced errors than winners with Cilic making 70 unforced errors to 57 winners and Nishikori 45 to 29.
The momentum swung throughout the match with 2014 champion Cilic looking in control when leading 4-2 in the second set before losing six games in a row.
He also lead with a break in the third-set tie-break before hitting two consecutive double faults to gift Nishikori the advantage.
Even in the final set Nishikori looked comfortable with a 4-1 lead before Cilic levelled, only for the Croat to lose the final two games.