Jelena Ostapenko continued her dominance over Iga Swiatek with a three-set victory to reach the Stuttgart Open semi-finals.
Latvia's Ostapenko beat world number two Swiatek 6-3 3-6 6-2 to extend her unbeaten winning streak against the Pole to six matches.
Ostapenko is the first player to beat five-time major champion Swiatek on every surface - once on grass, four times on hard courts and now once on clay.
"She's a great clay-court player but I won the French [Open] as well, so I can say the same thing about myself, " the 27-year-old said.