Barbora Krejcikova of the Czech Republic reached the French Open semifinals by defeating American teenager Coco Gauff 7-6 (6), 6-3.
Gauff had plenty of chances in the first set but failed to convert five set points. She saved five match points but her comeback attempt was too little too late after falling behind 5-0 in the second set.
Krejcikova extended her winning streak on clay to 10 matches.
"I really never imagined that I would be standing here one day," she said.