Sinner set to switch from night owl to early bird in Roland Garros heat

PARIS, May 27 : French Open second round action continues on Thursday with top seed Jannik Sinner opening proceedings on Court Philippe Chatrier while women's number one Aryna Sabalenka is also playing in the day session.

Defending champion Coco Gauff and Naomi Osaka are also in action, as are Canada's Felix Auger-Aliassime and Victoria Mboko.

TOP MEN'S MATCH: JANNIK SINNER V JUAN MANUEL CERUNDOLO

Sinner will swap the cool of the night session for the blazing heat of midday when he takes on Juan Manuel Cerundolo in their second-round clash at Roland Garros.

The Italian cruised through his opening match in straight sets under the lights but now faces a noon start as temperatures at the French Open soar.

The heat has become such a talking point that even spectators have been asking groundsmen to spray them with the same hoses used to water the claycourts.

"I'm happy to play at night. I'm happy to play (during the) day, whenever they put me, we'll see. I think I handled the heat very well in Indian Wells, was very hot this year, so I didn't have issues there," Sinner told reporters.

"We prepared in a good way. Of course here, different heat, but the humidity is not as tough as maybe in Australia or U.S."

Standing in his way is Argentine Cerundolo, the younger brother of Francisco and a claycourt specialist who is on the verge of breaking into the top 50 and represents a determined obstacle for Sinner.

TOP WOMEN'S MATCH: DONNA VEKIC V NAOMI OSAKA

Naomi Osaka grabbed headlines with her fashion choices before her first-round match at Roland Garros, but it was the actual heat that had the four-time Grand Slam champion reaching for ice towels.

The Japanese star will face Vekic in the second round after navigating both the sweltering