Sinner, who reached last year’s French Open quarter-finals, defeated Bautista 5-7, 6-4, 6-4 to become only the fourth teen to reach the men’s final in the 36-year history of the ATP Miami Masters.

Poland’s Hurkacz, seeded 26th, won his second straight match over a top 10 player, beating Russian fourth seed Andrey Rublev 6-3, 6-4.

Coming off a quarter-final win over second-seeded Stefanos Tsitsipas, Hurkacz became the first player to take a set off Rublev at the tournament. It’s the first time he has earned two top 10 wins in the same tournament.

Sinner, 19 and playing only his third Masters 1000, joined 1990 champion Andre Agassi, 2005 runner-up Rafael Nadal and 2007 winner Novak Djokovic as Miami teen finalists. “We both showed great tennis,” Sinner said. “It was not easy. It was a little bit windy as well. I am very happy about my performance,” he added.

Sinner took his eighth career triumph over a top-20 rival and ensured he will rise into the ATP’s top 25 next week, although he nearly smashed a racquet in a tense second set. “Sometimes you get the frustration going but just trying to stay calm, which is how I am normally,” Sinner said. “Sometimes you have to scream or do something else, but don’t break racquet. Please let me don’t break racquet.”

Sinner seeks his third career ATP title after last year at Sofia and February in an Australian Open tune-up at Melbourne.

As excited as he was at reaching the final, he kept a long-term perspective about what it meant for his career. “This kind of stuff can help you a lot. It’s good to be in finals here but it doesn’t mean anything,” Sinner said. “The road is very long and I want to improve day after day and we’ll see what’s coming.”

Bautista, who ousted Russian top seed Daniil Medvedev in the quarter-finals, missed out on his second career ATP Masters 1000 final after 2016 at Shanghai, where he lost to Britain’s Andy Murray.