Sensation at Roland-Garros.
Greece's Maria Sakkari eliminated defending champion Iga Swiatek, 6-4, 6-4 in 1:35.
This is the first semi-final in a grand slam for Sakkari who had never passed the third round at Roland Garros.
The Greek, 18th player in the world, will face the Czech Barbora Krejcikova, falling for the young Coco Gauff.
Women's singles (quarter-finals):
Barbora Krejcíková (CZE) beats Cori Gauff (USA / N.24) 7-6 (8/6), 6-3Marria Sakkari (GRE) beats Iga Swiatek (POL / 9) 6-4, 6-4