World number one Sabalenka was too strong for a battling Osaka, winning 7-5, 6-3 in the first women's night-session match in three years on Court Philippe Chatrier.The Belarusian will next face Diana Shnaider after the Russian left-hander beat former Australian Open winner Madison Keys 6-3, 3-6, 6-0.Sabalenka is the only Grand Slam champion left in either the men's or women's singles draws at Roland Garros as she bids for a maiden title on the Parisian clay, and to banish the memories of her painful loss in last year's final to Coco Gauff.She has reached the quarter-finals at 14 consecutive major tournaments."I didn't expect I would serve that great," said Sabalenka. "I feel like I'm getting better and better with every match I play and overall I'm super happy with how I played today."Osaka, again sporting the sequined gold dress she likened to the Eiffel Tower at night, had to make do with her best ever run in Paris ending in the last 16.It was the first time that WTA players had featured in the primetime slot since Sabalenka took on Sloane Stephens in the last 16 on June 4, 2023."I think it was pretty obvious this should be the night's match," tournament director Amelie Mauresmo told reporters earlier on Monday.Sabalenka took a tense first set that was largely dominated by serve after the players traded early breaks, courtesy of a crucial break in the 11th game.The top seed then powered through the second set, reeling off the last four games from 3-2 down to secure a third successive victory over Osaka this year.Austrian 28th seed Anastasia Potapova could not back up her win over defending champion Gauff, twice failing to serve for the match in a 6-4, 2-6, 7-6 (10/7) defeat by Anna Kalinskaya.The Russian will next face Polish qualifier Maja Chwalinska after she continued her remarkable run by cruising past the last remaining French player, Diane Parry, 6-3, 6-2."She's one of the top players in the world. No one knows me, to be honest, so definitely a very challenging one, like every match here," said Chwalinska of facing Kalinskaya.There was something for the Paris crowd to cheer after Parry's defeat, though, as Paris Saint-Germain players Ousmane Dembele, Desire Doue, Warren Zaire-Emery and Bradley Barcola paraded their two Champions League trophies on court after securing a second straight title on Saturday.Brilliant Berrettini marches on