Jo-Wilfried Tsonga was roared to a superb win by a home crowd as he beat Tomas Berdych 6-3 6-2 6-7 (5-7) 6-3 to make the French Open quarter-finals.
Tsonga failed to serve out at 5-4 up in the third, but delivered two aces in the final game to oust the fourth seed.
On a rain-affected day, Ana Ivanovic beat Ekaterina Makarova 7-5 3-6 6-1 to make the last eight for the first time since lifting the title in 2008.
Roger Federer and Gael Monfils were one set all when play was suspended.
The winner will go on to face Stan Wawrinka, who swept past Gilles Simon 6-1 6-4 6-2.
Tsonga will play Kei Nishikori next after the Japanese fifth seed enjoyed a straightforward 6-3 6-4 6-2 win over Teymuraz Gabashvili.
Sunday to Monday
The wet conditions put the day's proceedings so far behind schedule that Maria Sharapova's meeting with Lucie Safarova and Flavia Pennetta's match against Garbine Muguruza - last on Court Philippe Chatrier and Court Suzanne Lenglen respectively - were postponed until Monday.
On a grim afternoon at Roland Garros, Jamie Murray and Australian partner John Peers saw their doubles campaign end in the wind and rain on Court Seven.
The pair, seeded 11th, went down 6-3 7-5 to the experienced seventh seeds Nenad Zimonjic and Marcin Matkowski.
"We had a lot of chances but they served well and it wasn't easy conditions," said Murray. "They were better than us today - returned better, served better. We didn't deserve to win."
Katie Swan, 16, had a superb win over American Michaela Gordon in the girls' singles, saving a match point and recovering from 1-5 in the final set to win 4-6 6-4 8-6.
"I was struggling moving at the beginning; I was really nervous and I couldn't find my game until 1-5 in the third," said the Kansas-based Bristolian. "I'm glad I managed to find it."
Fellow Briton Maia Lumsden went down 6-2 6-1 to Anna Blinkova of Russia.
Gael feels the chill
With the light fading at approaching 20:30 local time on Court Philippe Chatrier, Gael Monfils resorted to desperate measures.
At 5-3 up in the second set, and after discussing the issue with the umpire at the changeover, the 13th seed marched over to the VIP box.
So what was his request? A blanket from French tennis federation president Jean Gachassin.
With not so much as a throw forthcoming, Monfils promptly dropped serve.
Quotes of the day
"I know how to use my brain, but sometimes I forget." Jo-Wilfried Tsonga explains it's not always about tactics.
"I don't think that's a really realistic view on that. I was nowhere near to that." Tomas Berdych does not agree that he was close to turning around his match against Jo-Wilfried Tsonga.
"I will go and ask the President." Gael Monfils tells the umpire he is going above his head as the Frenchman questions how dark it can get before he and Roger Federer are brought to a halt.
"The ball is touching the back line and you know it. You're looking in my eyes and you know it." French 29th seed Alize Cornet gets deep and meaningful with the umpire during her defeat by Svitolina:
"I think it's because I'm Serbian. We have combustible personalities and we are very emotional." Ana Ivanovic is asked why she is so "intense" on court.
"I think it is a little bit crazy how many media are here for me, and it's not unusual." Kei Nishikori has noticed how the media seats fill up for his matches.