Elena Rybakina beat Jessica Pegula for a fifth straight time to move into the Miami Open semi-finals, winning 2-6 6-3 6-4.
Australian Open champion Rybakina was the losing finalist in Miami in both 2023 and 2024, while her American opponent was runner-up in last year's competition.
Pegula, 32, took a 4-0 lead on her way to the first set, but Rybakina rallied and hit 15 aces and saved eight of 10 break points to come through.
She will face either world number one Aryna Sabalenka in a rematch of the Australian Open final, or the unseeded American Hailey Baptiste in the last four.