Ons Jabuer avenged her recent loss to Belinda Bencic with a win at the Madrid Open, while Coco Gauff is out after being beaten in straight sets in the round of 16 by Simona Halep on Monday.
Gauff joins other big names in exiting the WTA 1000 event, with Naomi Osaka, Garbine Muguruza, Danielle Collins, Paula Badosa and Maria Sakkari among those crashing out in the second round.
The number 14 seed did not put up much resistance against her Romanian opponent, with Halep winning 6-4 6-4 in just 77 minutes.
Gauff struggled on her own serve in particular, making six double faults and only winning 61.5 per cent of her first-serve points, compared to 83.8 from Halep on hers.
The former world number one and two-time Madrid champion will now face the only remaining top-eight seed in the tournament in the quarter-final, Jabeur, who defeated Bencic 6-2 3-6 6-2.
The Tunisian was out for revenge after losing to Bencic at the same stage last year, as well as in the Charleston Open final last month, and took it well as she sealed victory in just over two hours.
"I came here to take my revenge," Jabeur said after the win. "I wish I played like that in the final in Charleston, to be honest.
"Part of me is very proud of myself for coming today and getting the win. Belinda is such an amazing player and it's very tough to play against her. I'm very happy with the level I showed today, and hopefully this level will continue for the rest of the tournament."
Elsewhere, Victoria Azarenka is out after the number 15 seed was beaten 6-1 6-4 by Amanda Anisimova, who will now face Ekaterina Alexandrova in the last eight after she overcame Marie Bouzkova 6-7 (4-7) 6-0 7-5.
Zverev edges Griekspoor in four-hour classic at French Open
Alexander Zverev reached the fourth round of the French Open with a thrilling five-set win over Tallon Griekspoor, finding a second wind after a stirring rally from the Dutchman.
Zverev triumphed 3-6 6-4 6-2 4-6 7-6 (10-3) at the end of a gruelling four-hour, 17-minute contest on Court Philippe-Chatrier, teeing up a last-16 meeting with Holger Rune or Jozef Kovalik.
Zverev looked to have weathered an early storm when he fought back after losing the opener to go 2-1 up, but Griekspoor refused to go away and came roaring back in the fourth set, which lasted almost an hour.
The world number four appeared to be up against it when he was broken in the first game of the decider, and his frustrations got the better of him as he yelled at the umpire before being broken again.
However, he immediately hit back with two breaks of his own to go from 4-1 down to 4-4, eventually forcing a decisive tie-break.
He found another gear from there, sapping Griekspoor's confidence with some excellent play at the net, with a fine passing shot past his stranded opponent a highlight before he clinched victory with an ace.
Data Debrief: Zverev gathering momentum
Having warmed up for Roland Garros by winning the Italian Open, Zverev has now won nine straight matches on clay for the first time since 2018, when he won 13 consecutive contests on the surface at Munich, Madrid and Rome.
Medvedev passes Machac test to reach French Open fourth round
Daniil Medvedev dug deep to hold off Tomas Machac's threat in the French Open third round, claiming a 7-6 (7-4), 7-5, 1-6, 6-4 victory on Saturday.
Medvedev was pushed all the way to a first-set tie-break but took the opener, spurred on by an electric atmosphere on Court Suzanne Lenglen, before storming through the second.
Machac, who shocked Novak Djokovic in the Geneva Open semi-final last week, refused to back down, and soared through the third set, though he could not hold onto his building momentum.
With the prospect of a deciding set creeping closer, Medvedev rallied and held off a stubborn Machac, gaining a decisive break in the 10th game of the final set before a mistake from the Czech gifted him the victory.
Medvedev, who is chasing a second major, will face either Alex de Minaur or Jan-Lennard Struff in the fourth round.
Data Debrief: Medvedev hits form on clay
Medvedev has a win percentage of 76 per cent on clay since 2023 in ATP events, compared to just 44 per cent on the same surface between 2016 and 2022.
The world number five has now reached the round of 16 for the 15th time in his career at Grand Slams; only Marat Safin, Mikhail Youzhny and Yevgeny Kafelnikov have reached the fourth round more often in Grand Slams amongst Russians.
Sabalenka soars past best friend Badosa and into French Open last 16
Aryna Sabalenka recovered from a slow start to eventually advance to the French Open last 16 a commanding 7-5 6-1 victory over best friend Paula Badosa.
The second seed trailed 4-2 and was a break down in the opening set, but went on to win 11 of the next 13 games to seal a fourth-round clash with either Madison Keys or Emma Navarro.
Sabalenka has dropped just seven games in her opening two matches at Roland-Garros.
Although, it looked like she may lose the opening set when a fortuitous net shot gave Badosa a second break and a 4-2 lead on Court Philippe-Chatrier.
However, she dug deep from 5-3 adrift, winning the last four games to draw first blood.
The reigning Australian Open champion broke her opponent a further two times on the way to a commanding 4-0 advantage in the second.
Badosa did well to save three match points from 0-40 in game six, but the Spaniard could not rescue a fourth as her opponent continued her surge into the second week.
Data Debrief: Sabalenka completes top four in last 16
Following on from her victories when they met in Miami and Stuttgart earlier this season, Sabalenka became the first player to beat Badosa three times at WTA events in a calendar year.
Joining Iga Swiatek, Coco Gauff and Elena Rybakina, this marks the first time since 2013 that the top four seeds are through to the last 16 in the women's singles at Roland-Garros.
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