Defending champion Iga Swiatek has overcame a minor blip to secure her spot in the French Open third round, with a 6-4 6-0 victory over American Claire Liu.
Looking to lift the Suzanne Lenglen Cup for the third time in four years, the world No.1 started strongly, before briefly struggling on Court Philippe Chatrier.
With several sponsors seats empty in the middle of the afternoon - a sharp contrast with the usually packed night sessions - the Pole picked herself up quickly to end Liu's campaign in brutal fashion.
"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 raced to a 3-0 lead on a sunbathed Court Philippe Chatrier, but she looked too much in a hurry and Liu pulled one of two breaks back, as the Pole briefly lost her focus.
Liu levelled for 3-3, but dropped serve again, as Swiatek bagged the opening set.
The Pole did not look back, ending her opponent's ordeal on the second matchpoint, with a backhand winner down the line.
Swiatek next faces China's Wang Xinyu and may continue to play during the day, as organisers have scheduled men's matches in all five night sessions so far.
While she advocates women should get more exposure, Swiatek is personally happy she does not have to play under the lights in Paris.
"Obviously, it would be nice, if we had women's matches as well, but as I said, I'm not kind of helping that, because I always requested a day session match," she said.
"There are players who like the hype and the energy, and maybe playing during the night, because also of the conditions, but for me, it's more comfortable to just have the normal day/night rhythm.
"In terms of regeneration, recovery and just kind of being in a good rhythm, and also keeping a better mindset through the end of the tournament, I think it's more healthy for me to play day sessions."
Swiatek will not complain, if French Open organisers ask her to play at night.
"If there is a pretty big request, I always kind of adjust," she said.
Last year, only one of the 10 night sessions, which are exclusively broadcast by Amazon Prime Video in France, featured women, with tournament director Amelie Mauresmo saying men's matches were more appealing.
Reuters