Cameron Norrie has missed out on a place in the final of the Atlanta Open after going down in three sets to Taylor Fritz.
The British number two, who was also defeated in the semi-final last year, was immediately on the back foot after the American broke serve twice to take the first set 6-1.
Norrie put up a courageous fight in the second set to level the match with a solitary break, but lost his serve once in the third as Fritz wrapped up the match 6-1 3-6 6-3 on his second match point.
Big-serving Fritz, who won his maiden title last month at Eastbourne, fired 15 aces across the course of the one-hour, 40-minute match and won 77 per cent of his first-serve points.
"To get to two finals in a month really shows that my level has gone up and that the first time wasn't a fluke. I know I'm improving, so it feels really good," Fritz told the ATP Tour website.
Earlier, Alexander Zverev was defeated in the semi-finals of the Hamburg European Open by defending champion Nikoloz Basilashvili after failing to covert two match points.
The German second seed and world number five had the chance to seal victory at 5-3 up in the third set before his opponent went on to triumph 6-4 4-6 7-6 (5).
It came a day on from the announcement that Zverev's partnership with coach Ivan Lendl had ended.
Georgia's fourth-seeded Basilashvili will now face Russian Andrey Rublev in Sunday's final.
Rublev fought back from a set down to win his last-four match, beating Spaniard Pablo Carrena Busta 4-6 7-5 6-1.
The final of the Swiss Open Gstaad will be between Spain's Albert Ramos-Vinolas and fellow unseeded player Cedrik-Marcel Stebe, the German ranked 455th in the world.
Each overcame seeded opposition in the semis on Saturday, Ramos-Vinolas beating compatriot Pablo Andujar, the seventh seed, 7-6 (3) 6-4, and Stebe winning 3-6 6-1 6-2 against the fifth seed, Joao Sousa of Portugal.
It was Stebe's second match of the day, with him having earlier seen off Italian Thomas Fabbiano 6-4 2-6 6-4.
Sunday's match will be a first ATP Tour final for the 28-year-old, who entered the tournament having not won a tour-level match since September 2017. He underwent two right wrist surgeries last year and another this February.