Grigor Dimitrov was able to overpower Alexander Zverev 6-4 6-7(4) 6-4 after a thrilling encounter on Friday to qualify for the Miami Open final.
The Bulgarian will face world number three Jannik Sinner in the final on Sunday.
Dimitrov, the 11th seed, made just three unforced errors to clinch the first set after dominating the show with his sublime forehand.
However, fourth seed Zverev, made a comeback to clinch the second set in the tie-break to level the match.
But Dimitrov extended his number of winners up to 44 in the third set as he registered his first win over Zverev since 2014.
According to Opta, after defeating Alexander Zverev in Miami, Dimitrov (32y 318d) became the oldest player to claim consecutive ATP top 10 wins in the round of 16, quarter-final and semi-final of an ATP Masters 1000 event, since the format’s introduction in 1990.
"It was like a dogfight on both ends, we really went after each other," said Dimitrov, whose win will see him make a comeback to the top 10 for the first time since 2018.
"He upped his game in the second set, in the third set he also had a chance but I served well."
Meanwhile, Sinner reached the final for the second year in a row after defeating defending Miami Open champion Daniil Medvedev 6-1 6-2.
Sinner hardly put a foot wrong as he ended Medvedev's resistance in 69 minutes.
"I felt great on court today, usually the more you go on in a tournament the more comfortable I feel and I'm very happy about today's performance," Sinner said after reaching the Miami final for a third time in four years.
"I don't think Daniil felt too well today he made a lot of mistakes he usually doesn't make.
"For me it is an important tournament if I can get it good, if not I had another great chance."
Sinner, whose only defeat this season was a last-four loss to Carlos Alcaraz in Indian Wells, became the first player this season to qualify for three finals.
