12:48 CET - Marta Kostyuk has dumped four-time champion Iga Swiatek out of Roland Garros!
The Ukrainian, who is unbeaten on clay this season, winning titles in Rouen and Madrid, clinched a seesaw opening set before steamrolling Swiatek in the second to win 7-5, 6-1. She played ultra-aggressively from the off, hitting 25 winners, aiming to make the Pole uncomfortable.
It is a huge result for Kostyuk, and she is a real contender to win her first Grand Slam title. Her improvement has been for all to see this year, and at 23 years old, she is only going to get better. She is into a maiden French Open quarter-final.
More disappointment for Swiatek, though, whose struggles continue. She put in an extremely poor performance today, making 39 unforced errors and hitting only 13 winners. She has now gone two years without winning a tournament on clay - a surface she used to absolutely dominate. Back to the drawing board for her.
11:05 CET - We are minutes away from the start of play in Paris, and you can follow all the action live with us!
Keep up to date with the men's matches here, and the women's here.
09:00 CET - Good morning and welcome to the second week of the French Open, and things are about to get serious.
It has been a tournament full of marathon contests under the blistering heat, shock results, top seeds getting dumped out, and we are now getting closer to finding out our last eight players on both the men's and women's sides of the draw.
After a week that saw temperatures hit the mid to high 30s, Paris has finally cooled down, and we could even see some rain over the next seven days!
Play gets underway in two hours, and up first on Philippe-Chatrier is a mouthwatering contest between four-time Roland Garros champion Iga Swiatek and the in-form Marta Kostyuk.
Kostyuk is on a 15-match winning streak on the clay, clinching titles in Rouen and Madrid. Swiatek leads the head-to-head 3-0, but they have never played on the dirt before, and Kostyuk is playing the best tennis of her career. Hopefully it's a cracker.
That is followed by another in-form Ukrainian, Elina Svitolina, as she takes on fellow mother, Belinda Bencic! The former is coming off the back of winning the Rome title and has won their last four meetings.
Alexander Zverev follows them, and he faces lucky loser and surprise package Jesper de Jong. With Jannik Sinner and Novak Djokovic tumbling out of the tournament, the pressure is on Zverev, who is the firm favourite to finally cross the final hurdle and win a maiden Grand Slam.
Finally, the match of the day headlines the evening session, as another big favourite to win the title, two-time finalist Casper Ruud, meets Djokovic's conqueror, Joao Fonseca.
They have never played each other before, and after some of the marathons both players have been involved in, it'll be interesting to see how much they have left in the tank.
Over on Suzanne-Lenglen, the high-flying Sorana Cirstea meets Wang Xiyu in the opening encounter on that court. Despite being 36 and announcing that this is her last year on tour, Cirstea is playing the best tennis of her career! She won her last match 6-0, 6-0! Surely she has another year in her...
An all-Spanish affair then sees 19-year-old rising superstar Rafa Jodar clash with Pablo Carreno Busta, who is 15 years his senior.
Another 19-year-old, Mirra Andreeva, will be looking to continue cruising through the draw against Jil Teichmann, while Jakub Mensik and Andrey Rublev are last up.