Jack Draper beat defending champion Carlos Alcaraz to reach the Indian Wells final.
British No1 Draper beat four-time major winner Alcaraz 6-1, 0-6, 6-4 to set up a final meeting with Holger Rune.
The win means Draper will move into the world's top 10 for the first time.
“It feels unbelievable,” Draper told Sky Sports about reaching the top 10. “I've been through so much the last few years with injuries and setbacks.
“It feels incredible, but I've got another one tomorrow.”
A series of brilliant serves propelled Draper to the first set inside 25 minutes, but fortunes were reversed as the second seed raced through the second set to level.
The match swung Draper's way with a controversial moment at 1-1 and 15-15 on the Alcaraz serve.
Alcaraz was awarded the point when the umpire ruled Draper had not reached his drop shot before a second bounce, but the Briton successfully challenged the ruling and won successive points to claim a break of serve.
He broke again in a lengthy seventh game to move 5-2 ahead and although Alcaraz broke back, Draper served out at the second attempt to clinch his place in the final.
“It was a strange match in all honesty,” said Draper. “Carlos came out a little flat, I sensed that.
“Against the top players in the world, they can change their momentum very quickly. I got lost out there for 25 minutes, but in the third, I was really proud of my competitiveness, my attitude and I somehow managed to get over the line."
Draper will face Rune in the final after he beat Daniil Medvedev 7-5 6-2.
Additional reporting: Press Association
