US Open champion Sloane Stephens staged a magnificent comeback to defeat Victoria Azarenka and reach the Miami Open final for the first time.
American 13th seed Stephens beat the former world number one 3-6 6-2 6-1.
Belarusian 28-year-old Azarenka, now ranked 108th, took the first two games of the second set but Stephens won 10 games in a row to turn the tie around.
"I knew I had to stay in it. Victoria is a great champion," said world number 12 Stephens, 25.
"I kept battling and I got a little momentum going in the second set.