Taylor Fritz became the first American man in 15 years to reach a Grand Slam singles final as he beat compatriot Frances Tiafoe in a five-set US Open thriller.
Fritz fought back to beat his good friend Tiafoe 4-6 7-5 4-6 6-4 6-1 under the lights in New York.
Andy Roddick was the last American man to win a major singles title, having triumphed at the US Open in 2003.
Roddick was also the last American man to reach a Grand Slam singles final – at Wimbledon in 2009 – as well as being the last to reach a US Open final in 2006.
Fritz will face world number one Jannik Sinner in Sunday’s final at Flushing Meadows.
The 12th seed had previously never made it beyond the quarter-finals of a Grand Slam in four attempts.
“He overwhelmed me at the start and I was freaking out a little,” Fritz, 26, said.
“I did all I could to stay in it. If I hadn’t done that, I’d regret it forever.”
It is a second semi-final loss in two years for Tiafoe, who was beaten by eventual champion Carlos Alcaraz at the same stage in 2022.
There could also be an American champion in the women’s singles final when Jessica Pegula takes on Belarus’ Aryna Sabalenka on Saturday.