Defending champion Iga Swiatek booked her spot in the third round of the French Open with victory over American Claire Liu on Thursday.
It wasn't the best outing for the Pole despite winning 6-4 6-0 on Court Philippe Chatrier.
She raced to a 3-0 lead within 17 minutes only to lose three consecutive games in the opening set.
This resulted in her fighting off a break point to clinch the first set before raising her level in the second set to record a straightforward win.
"It's not easy when you play with the wind and change sides to play against it," said Swiatek, who turned 22 on Wednesday.
"I'm happy I raised my level in the second set.
"Patience is important, especially on clay."
Swiatek is looking to lift the Suzanne Lenglen Cup for the third time in four years.
Should this happen, she will become the first woman in 16 years to successfully defend the French Open title.