Third seed Elina Svitolina progressed to the French Open last 16 with a straight-set victory over Russia's Ekaterina Alexandrova.
The 26-year-old Ukrainian won 6-4 7-5 in one hour and 40 minutes.
Alexandrova double-faulted to hand her opponent two match points and then went long to see Svitolina safely through.
"It's always nice to be in the second week of a Grand Slam and have a chance to go deep into the tournament, that's always the goal," said Svitolina.
"It was not easy, going into the match I knew she would strike the ball hard and flat, so I had to adjust quickly with my feet.