Iga Swiatek continued her superb form with a 15th consecutive win to ease past Petra Kvitova and reach the semi-finals of the Miami Open.
The 20-year-old did not face a single break point in a routine 6-3 6-3 win.
The Pole arrived in Miami after winning back-to-back titles at Doha and Indian Wells, and will become world number one next week.
"I want to use the confidence that I built since the beginning of Doha," Swiatek said.
"I'm on a roll and I want to use that. Having that kind of streak got pretty tricky, but I'm pretty glad that I could play well, that I'm healthy, and that I can compete against players like Petra.