Carlos Alcaraz defeated Jannik Sinner to reach his first Grand Slam semi-final.

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This was the first Grand Slam semi-final for Carlos Alcaraz.

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It was the latest ever finish of nearly half an hour in US Open history.

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Sinner was serving 5–4 in the fourth set, but Alcaraz returned with three wins in a row and won the match.

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Alcaraz became the youngest male Grand Slam semifinalist since Rafael Nadal in 2005.

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He also became the youngest player in the US Open since Pete Sampras in 1990.

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"I always say that you have to believe in yourself all the time," Alcaraz said after the match.

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The match is likely to be remembered as one of the greatest in US Open history, with a dedicated crowd watching.

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"This match is insane. I leave at 6 am for the airport but I refuse to sleep and miss this," American star Coco Gauff tweeted.

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Iga Swiatek is just two steps away from her 2nd grand slam title.