Slovenia's Tamara Zidansek is the first player to reach the French Open quarter-finals, beating Romania's Sorana Cirstea 7-6 (7-4) 6-1.
Unseeded Zidansek, 23, reaches a Grand Slam quarter-final for the first time, and had never previously been beyond the first round in Paris.
The world number 85 saved a set point in a tight first set before dominating Cirstea, ranked world number 54.
"I came out on court prepared and it was a battle," she said on court.