Postpublished at 13:38 British Summer Time 6 June 2017
*Ostapenko 0-5 Wozniacki
Anyone a bit peckish? A bagel might be delivered in a minute or two...
Image source, ReutersSummary
Latvia's Jelena Ostapenko beats 11th seed Caroline Wozniacki 4-6 6-2 6-2
Swiss Timea Bacsinszky beats France's Kristina Mladenovic 6-4 6-4
Djokovic and Nadal quarter-finals postponed
They now play at 10:00 BST on Wednesday after rain delayed play twice
Murray and Wawrinka also play on Wednesday
Postpublished at 13:38 British Summer Time 6 June 2017
Image source, ReutersMladenovic breaks backpublished at 13:37 British Summer Time 6 June 2017
*Mladenovic 2-2 Bacsinszky
Is there an indoor court we can switch to somewhere in Paris?
Spanish umpire Carlos Ramos is looking on, with his 20 second rule between points in tatters. Mladenovic nips to her bag to put in some eye drops, presumably to help her through this wind.
They do the job. A double fault from Bacsinszky gives Mladenovic the break back.
24 minutes in and we've played four games. This one could go on a while.
Image source, ReutersClouds of claypublished at 13:31 British Summer Time 6 June 2017
Piers Newbery
BBC Sport at Roland GarrosI can confirm it is blowing a gale out here on Chatrier, or more accurately gusting - moments of calm followed by big billowing blasts that send red clay right up here into the media seats on the upper level. A Panama hat tumbles away from its owner on the far side - they won't be seeing that again - while the ball kids ensure all of the many towels are firmly pinned down by anything to hand.
Image source, ReutersPostpublished at 13:31 British Summer Time 6 June 2017
Mladenovic 1-2 Bacsinszky*
Well played Kristina Mladenovic.
Just imagine reaching your first quarter-final at your home Grand Slam and being greeted to conditions like this.
The 24-year-old fights off the break point with a brave volley at the net and battles through to take her first game.
Image source, AFPWozniacki goes double break uppublished at 13:30 British Summer Time 6 June 2017
Ostapenko 0-4 Wozniacki*
Caroline Wozniacki might be hoping this howling wind sticks around at Roland Garros all week.
The wily Dane is playing the percentages, while Ostapenko continues to try to wallop everything.
The teenage Latvian has already made 13 unforced errors in the opening four games...
Another game, another game in Wozniacki's favour.
Image source, ReutersPostpublished at 13:29 British Summer Time 6 June 2017
*Mladenovic 0-2 Bacsinszky
These are awful conditions for tennis. Again the clay is being blown all around Chatrier.
Mladenovic is struggling. A serious grimace on her face. She is taking an age between serves as a result of the sudden gusts, taking two or three attempts with the ball toss and covering her eyes to keep out the red dirt.
Bacsinszky senses the chance to take an even tighter hold of this set as she brings up another break point...
Image source, AFPPostpublished at 13:27 British Summer Time 6 June 2017
*Ostapenko 0-3 Wozniacki
Danger averted. Wozniacki's experience eventually shines through.
Two double faults heap the pressure on the Dane's serve, Ostapenko batting a forehand volley down to safely set up two break points.
But the former number one steadies the ship, getting the ball into play and trying to force her inexperienced opponent into errors.
That's what happens as we move into deuce, Ostapenko blowing a third break point as Wozzy holds.
Up above, there are some dark clouds circling...
Image source, Reuters'Kiki' relishing the spotlightpublished at 13:24 British Summer Time 6 June 2017
Piers Newbery
BBC Sport at Roland GarrosThey might not have had to wait 36 years like the Brits, but the 17-year wait for a home singles champion is not exactly lost on the Roland Garros crowd.
That pressure has got to other French players, step forward Amelie Mauresmo and Richard Gasquet amongst others, but Mladenovic appears to relish the spotlight.
She arrived in Paris on a run of form that had the local media excited and, despite clearly carrying a back issue for some time now, has lived up to the billing so far. She might have reached the stage where many in France expect her to win, however.
Image source, AFPPostpublished at 13:23 British Summer Time 6 June 2017
*Mladenovic 0-2 Bacsinszky
Both players are looking to keep the ball in play in this wind early on as the shot count already racks up.
The players pause as the red clay is whipped up into a sandstorm blowing into the face of each player. It does not look at all pleasant.
After a lengthy game and a mixed bag of winners and errors, Bacsinszky manages to hold.
Image source, AFPWozniacki breakspublished at 13:19 British Summer Time 6 June 2017
Ostapenko 0-2 Wozniacki*
The perfect start for Caroline Wozniacki.
She overcomes a bit of early bother with the ball toss in this Paris wind to hold, then is provided two early break points by her teenage opponent.
Ostapenko sticks her first serve in, so far so good, but then... wallops a wild forehand into the middle of the tramlines.
Image source, AFPBacsinszky breakspublished at 13:16 British Summer Time 6 June 2017
Mladenovic 0-1 Bacsinszky* (* next to serve)
The sight of their home favourite and a later start still can't drag the French crowd away from their lunchtime snooze and into their seats.
Mladenovic gets us under way and the wind is already causing havoc with the ball toss.
Both players look uncertain but the Swiss player manages to break serve straight away.
Image source, AFPMurray storms through practicepublished at 13:16 British Summer Time 6 June 2017
Piers Newbery
BBC Sport at Roland GarrosWe've had an early morning squall of wind and rain followed quickly by a burst of watery sunshine, all of which left Andy Murray's morning practice session a bit of a hurried affair out on Chatrier.
With play imminent and spectators filing in, the world number one scooted around the net for a few volleys after his baseline drills. An afternoon of sightseeing could lie ahead, although the gym is probably more likely.
Image source, BBC SportPostpublished at 13:14 British Summer Time 6 June 2017
Mladenovic v Bacsinszky
Image source, Getty ImagesMercifully after a wet morning we are good to go on time for these singles quarter-finals.
The groundstaff have done a fine job of keeping the court dry and the players are out on court.
Don't let the sunshine fool you though, it is a blowing a gale in Paris. As all club players will know, that is not good for a game of tennis.
Anyway, here we go...
Tale of the tapepublished at 13:13 British Summer Time 6 June 2017
Ostapenko v Wozniacki
Image source, #bbctennisOver on Lenglen...published at 13:12 British Summer Time 6 June 2017
Ostapenko v Wozniacki
While home favourite Kiki Mladenovic enjoys the Chatrier spotlight, the only former world number one left in the women's draw is knocking up over the way on Court Suzanne Lenglen.
Is this finally the year Caroline Wozniacki, who famously rose to the top of the world rankings in 2010 without triumphing at a major, can add 'Grand Slam champion' to her CV?
First the 26-year-old Dane has to see off unseeded Latvian Jelena Ostapenko.
The 19-year-old, ranked 35 places behind Wozzy at 47th, is playing in her first Grand Slam quarter-final.
Tale of the tapepublished at 13:11 British Summer Time 6 June 2017
Mladenovic v Bacsinszky
Image source, #bbctennisMladenovic aiming to end 17-year wait?published at 13:10 British Summer Time 6 June 2017
Mladenovic v Bacsinszky
Image source, Getty ImagesNot since Mary Pierce in 2000 has a French player won on the clay at Roland Garros.
There is a growing feeling in Paris that 13th seed Kristina Mladenovic could end that barren spell.
We are guaranteed a new Grand Slam champion come the end of the women's final on Saturday as, for the first time since 1977, there are no major winners among the women's quarter-finalists.
After surviving a scare in the first round, 24-year-old Mladenovic has reached her second Grand Slam quarter-final and her first at Roland Garros.
She dumped out defending champion Garbine Muguruza in the last round - could this be her year?
'A land of opportunity'published at 13:09 British Summer Time 6 June 2017
Who is going to follow in Garbine Muguruza's footsteps and lift the Coupe Suzanne Lenglen on Saturday?
Like you, we've got no idea. Luckily we're in good company because three-time major winner Lindsay Davenport isn't sure either.
This year's French Open is a "land of opportunity" with no Grand Slam champions left among the women's draw, says the American.
"It is wide open," says the American former world number one. "From two through 18 in the rankings it seems like there's not that big a difference.
"It's a land of opportunity and we'll see who holds up under that pressure."
Image source, Getty ImagesImage caption, Roland Garros was the only Slam title which Davenport did not win
Women's title up for grabspublished at 13:07 British Summer Time 6 June 2017
Image source, Getty ImagesKristina Mladenovic, Timea Bacsinszky, Jelena Ostapenko, Caroline Wozniacki, Simona Halep, Karolina Pliskova, Elina Svitolina and Caroline Garcia.
What do all of this year's French Open quarter-finalists have in common?
Well, for starters they're pretty good at tennis but the key stat here is not one of them has won a Grand Slam.
In fact the women's draw is missing 30 Grand Slam titles with the absence of Serena Williams, awaiting the birth of her first child, Victoria Azarenka, who returns at Wimbledon following the birth of her son, and Maria Sharapova, who did not get a wildcard after her doping ban.
Other champions such as Svetlana Kuznetsova, Angelique Kerber and Sam Stosur have fallen in the early stages.
This one really is anyone's for the taking...
Postpublished at 13:05 British Summer Time 6 June 2017
We're down to the last eight in both the men's and women's draws of this year's French Open, with a feast of action coming up today.
Four quarter-finals - two men's, two women's.
Attention is firmly on a wide open women's draw early on before Novak Djokovic and Rafael Nadal play in their respective matches.
The locals are getting excited about a first French winner since 2000 and that's where we'll focus to start with as France's 13th seed Kristina Mladenovic faces Timea Bacsinszky.
Here's what is coming up:
- Kristina Mladenovic v Timea Bacsinszky
- Jelena Ostapenko v Caroline Wozniacki
- Pablo Carreno Busta v Rafael Nadal
- Dominic Thiem v Novak Djokovic