Court Suzanne-Lenglen is bathed in some beautiful sunshine and Novak Djokovic is enjoying himself against Gilles Muller, who is two sets down. Fact fans might like to know that Muller is the only man from Luxembourg to compete at a Grand Slam in the Open Era. That's some pressure there Gilles, who is probably being watched by approximately all 551,000 people who live in Luxembourg right now.
Portugal's Joao Sousa is pulling some tremendous shots out of his tennis locker, if such a thing exists in metaphorical terms. He breaks Murray to take the second set with a disguised drop-shot and a smash. Boom!
Mike Bryan is currently playing mixed doubles with Bethanie Mattek-Sands following a first-round men's doubles victory with bro Bob Bryan yesterday. But where is Bob exactly?...
Andy Murray continues to gee himself up on Philippe-Chatrier. He says, "Let's go!" as he breaks Portugal's Joao Sousa straight back.
There's still lots happening around the courts. Jeremy Chardy has taken the first set from John Isner 6-4 to whoops from the home crowd while Tommy Robredo has levelled his match against Borna Coric one-set all, taking the second 6-3. On Suzanne-Lenglen, Novak Djokovic is serving for the second set.
Over on Philippe-Chatrier Andy Murray tells himself to "calm down, calm down." The reason? He is facing 0-40 against Joao Sousa and was handed a time violation. The result? Sousa breaks the British third seed and is now serving for the set.
Bulgarian's Tsvetana Pironkova - rated by many on the Tour as a speedy hard-court specialist - has her day on clay, beating Czech Denisa Allertova.
A shout out to two Americans hoping to play themselves into the third round in the early evening here. On Court 1, John Isner is locked on serve against Frenchman Jeremy Chardy in the first set while over on Court 3 Jack Sock is just opening up his match against Spain's Pablo Carreno Busta.
Please excuse us here at Blog HQ while a tarte aux cerises is retrieved from the handbag, where we'd forgotten we'd left it... So many patisserie temptations in Paris.
American Madison Keys - the 16th seed here - makes short work of Swiss rising star Belinda Bencic. Victory for Keys means she's into the third round of Roland-Garros for the first time. Way to go.
Watched by American Vogue editor-in-chief Anna Wintour, Novak Djokovic has been showing off his most stylish strokes on Court Suzanne-Lenglen. The world No.1 has taken the first set from Gilles Muller, who polished off a five-set first-round win only yesterday.
This match-up between young gun Borna Coric and the experienced head of Tommy Robredo has been hotly-anticipated. Experts were predicting Boric would have too much firepower for Robredo. Well the pair swapped breaks in the opener but it was the Croatian teenager who clinched the first set.
Over on Philippe-Chatrier, Andy Murray grabs himself three sets points and leaves just one on the shelf as he wraps up the first set in 41 minutes. Joao Sousa pumps the ball long and the third seed responds with a fist pump.
It's a change of ends at Blog HQ. Leigh Walsh has gone to get her grasscourt game in order for Wimbledon. I'm back from watching Serena Williams. Wow that was an emotional watch. More on that in a bit. What do you think of all the twists and turns on day five? Tweet me @sholtscribbles or @rolandgarros.
Early breaks of serve on Philippe-Chatrier and Suzanne-Lenglen for Murray and Djokovic. The Brit leads Joao Sousa 3-1 while the Serb is 4-1 up on Muller.
Job done. A thoroughly professional performance from Victoria Azarenka as she dances her way into the third round with a 6-2, 6-3 win over Lucie Hradecka. Clinical stuff from the Belarusian who hit just seven unforced errors and 19 winners, the last of which came on match point. A blockbuster third round lies in store: Serena Williams v Victoria Azarenka.
The big question coming into this tournament was, can anyone stop Novak Djokovic? Jarkko Nieminen failed in the first round, now it's the turn of the big-serving Gilles Muller from Luxembourg. The pair have met once before, with the Serb prevailing 6-4, 7-5, 7-5 at this year's Australian Open. Djokovic hasn't lost a match since falling to Federer in the Dubai final 24 matches ago. At 27 years old, he is peaking.
David Goffin. Remember him? That loveable Belgian reached the last 16 as a lucky loser here three years ago and he has been surging up the rankings of late. He currently sits at world No.18 and has just taken a two sets to one lead against Giraldo. Meanwhile, Azarenka leads Hradecka 6-2, 2-2 and it's early days in Murray v Sousa, Coric v Robredo, Pironkova v Allertova and Bencic v Keys.
How's the heart rate after that emotional yo-yo? We're just returning to resting rate here at Blog Towers.
Right, deep breaths. Where are we...
Serena survives! Did anyone doubt her? Despite connecting with 52 unforced errors, the world No.1 comes through a tough, tough match against Friedsam, avoiding a repeat of her early exit in 2014. She will face the winner of Azarenka and Hradecka. The Belarusian currently leads that one 6-2 out on Court 1.
From the all-Aussie clash to the all-Spanish. Nadal rounds out a straight sets win over Almagro, sealing it with a big trademark forehand. Just the 16 unforced errors from the Spaniard, who seems to be reigning in the errors that have troubled him this season. The nine-time champion looks confident, and that will worry those around him in the draw.
The upset is complete! Kokkinakis is on his back. He is into the third round at a Grand Slam for the first time with a tremendous comeback from two sets down. Three match points were saved en route. That one will hurt for Tomic, but this day is about his young compatriot. What a talent. The future has arrived.
We can here the roar from Blog HQ. Tomic sends a groundstroke long, his 45th error of the match, and Kokkinakis breaks to edge 7-6 ahead in the fifth. He'll serve for a place in the third round at a Grand Slam for the first time.
What drama. At 5-4, 40-30, Andreea Mitu lashes a forehand winner cross court, but the linesman's arm goes up. The Romanian calls the umpire down from her chair, she examines the mark and overrules the decision. Ball in. Match won. Upset complete. Down goes 12th seed Karolina Pliskova.
Serena strikes first in the third set, breaking to love. Did we expect anything less?
If there is one thing we have learned about Thanasi Kokkinakis this year, it's that he has guts in abundance. Whether it was his win over Gulbis in Australia or his Davis Cup heroics, he has shown that he isn't one to lie down easy. Down a break in the fifth set on Court 7, the teenager has just put together a stunning game to break Tomic, sealing it with a backhand winner. He'll serve at 4-5 down, having already saved three match points.
We hopped over to Suzanne-Lenglen just in time to see Serena rifle a swinging-forehand-volley winner past Friedsam to clinch the second set. The American has a 55-2 win-loss record in second round Grand Slam matches. Will it be 56-2 by the end of today?
Amid that drama, we've only gone and neglected the nine-time Roland Garros champion. Rafael Nadal is looking comfortable out on Philippe-Chatrier, leading two sets to love. The Spaniard doesn't like losing to compatriots, and in his 13 previous meetings with Almagro he has emerged victorious 12 times.
Schiavone is sobbing tears of joy into her towel after winning that. She put everything into that one. Next up is the winner of Pliskova and Mitu, who are currently locked in a third set. Can the Italian start dreaming of a second Grand Slam crown? I tell you what, with a performance like that she can't be counted out.
The longest women's match of the Open Era at Roland Garros has finished and Francesca Schiavone is the victor. What. A. Performance. The veteran often saves her best tennis for Paris but this was something special. With three hours and 50 minutes played, Kuznetsova dumped a forehand volley into the net to give the Italian a 6-7, 7-5, 10-8 win. And remember, she saved a match point at 5-6 with a ludricious backhand winner. How she had the energy to jump around in jubilation, we simply do not know.
After EIGHT breaks a serve, we have a hold. Schiavone puts the pressure on Kuznetsova, edging ahead 9-8. This tennis, it must be said, is utterly mesmerizing. Will the Italian break? After the drama that has unfolded today, anything could happen. Literally anything.
Schiavone and Kuznetsova are tied at 8-8 (EIGHT-EIGHT) in the deciding set. There are three hours and 40 minutes on the clock. You may know by now, but this pair contested the longest women's singles match in Grand Slam history at the 2011 Australian Open - going on for four hours and 44 minutes. But check this out: The longest women's match (by time) took place at a tournament in Richmond, Virginia, in 1984, when Vicki Nelson took 6 hours, 31
minutes to defeat Jean Hepner 6–4, 7–6(11–9). AND the match featured a 29-minute, 643-shot rally, the longest in professional tennis history.
Thanasi Kokkinakis levels his match with fellow Aussie Bernard Tomic at 3-6, 3-6, 6-3, 6-4. This is some effort from the teenager. Pull up a seat, folks, this one is getting tasty.
Wow. WOW. Anna-Lena Friedsam, who had never won a Grand Slam match before this week, has taken the opening set from world No.1 Serena Williams. The American sent a backhand return wide on set point, drawing a loud gasp from the Suzanne-Lenglen crowd. Serena was ousted from Roland Garros at this stage last year. It couldn't happen again, could it?
It's Leigh Walsh with you now, by the way. Sarah has gone to have a lie down after ALL the drama that has unfolded today. Get in touch at either @rolandgarros or @leighwalsh87. I promise we won't bite.
To answer my own question, Williams will not kick on from here. She gets broken to fall 6-5 behind and Friedsam will once more serve for the set. Scenes.
Stop that, Schiavone. Stop that. The Italian, staring down a match point, produces some delicious tennis, opening up the court before rifling an all-or-nothing backhand winner down the line. She follows it with a delightful volley before a Kuznetsova double fault makes it 6-6 in the third. Bonus tennis. What. A. Treat.
Serena breaks! We're back on serve over on Suzanne-Lenglen. Will the world No.1 kick on from here?
There are three hours and nine minutes on the Court 1 clock. The tussle between former champions Francesca Schiavone and Svetlana Kuznetsova continues. She has broken the Russian - again - to once more level this third set. The players following this battling duo might as well put their feet up.
Back to Suzanne-Lenglen, where Anna-Lena Friedsam has broken the world No.1 Serena Williams and then backed it up with a solid service game. Serena has her hand on her hip and is frustrated. Things not going her way at the moment.
Rafael Nadal closes out the first set with a feisty forehand after a bit of a marathon with fellow Spaniard Nicolas Almagro, who saved three set points in his last service game. The opener took 51 minutes, for those keeping an eye on the timings.
For those of you with one eye on the battle of the former champions, we can tell you that Svetlana Kuznetsova took an early break against Francesca Schiavone in the decisive third set... But the Italian has broken her Russian opponent in the eighth game. We continue.
Over on Court Suzanne-Lenglen, it's hello to top seed Serena Williams, who is getting into her groove against German Anna-Lena Friedsam. The pair of players have swapped breaks in the early stages.
We're up to date on the latest scores so we'll just poke our head around the corner of Philippe-Chatrier where Rafa is a break up in the opening set. His opponent Nicolas Almagro tuned up for this match by practising earlier with Andy Murray, who is up next on the showcase court.
Worth mentioning that Philipp Kohlschreiber had led that decisive fifth set 4-2 before bad light stopped play, to borrow cricket parlance. So, that's a great turnaround from Pablo Andujar but rather bad luck for the German, who similarly lost to Andy Murray in a light-delayed match here last year.
The all-Aussie encounter on Court 7 has produced some entertaining tennis but it's going the way of 27th seed Bernard Tomic so far. Kokkinakis has had 12 break points and he was just overheard joking to himself: "I've seen everything. I'd pay for one right now."
Over on Court 6, another top-20 player survives as Andrea Petkovic turns round her match against clay-court specialist Lourdes Dominguez Lino to advance. The German gives an absolutely huge fist pump before breaking into a smile.
Petra Kvitova survives another three-setter to go into the third round in Paris. The Czech fourth seed seals victory over Spain's Silvia Soler-Espinosa with a cross-court forehand.
There is no respite in the battle of the former champions. Svetlana Kuznetsova had a 2-0 lead in this second set but Francesca Schiavone grits her teeth and she breaks in the 12th game to level this match. The Italian has a spring in her step now.
Nicolas Almagro, who has just hung onto his serve, is aiming to do a rare thing and beat Rafael Nadal twice on clay. The world No. 154 beat Rafa in Barcelona last year. Should he pull off a coup today, he can count himself as just the sixth man to inflict multiple clay-court defeats on the nine-time French Open champion.
The crowd on Court 1 continue to bite their nails as Francesca Schiavone and Svetlana Kuznetsova continue to hit hard in the second set. As thing stand, we're heading for another tie-break. It's a fun atmosphere at the 'Bull Ring' and the crowd are absolutely into this mesmerising match.
German's Benjamin Becker has pulled out of #RG15 because of a right shoulder injury. He was due to face Kei Nishikori in the third round and that means the Japanese fifth seed is into the fourth round without breaking sweat.
Grab a fromage sandwich and a cup of cafe, peut-etre un Perrier, because we have the perfect entertainment to take you through lunch. He goes by the name of Rafa Nadal and he's a bit good on the clay. The nine-time champion is back on Philippe-Chatrier as he faces fellow Spaniard Nicolas Almagro. Stay tuned
Italian 17th seed Sara Errani books her place in the third round, coming back from a set-down to see off Germany's Carina Witthoeft. She awaits the winner of the match between Andrea Petkovic and Lino Lourdes Dominguez, which is into the third set.
Julia Goerges hangs tough to send another women's seed spiralling out of #RG15, seeing off Danish fifth seed Caroline Wozniacki 7-4 in the second-set breaker. "It definitely means a lot to beat a player like Caroline in a Grand Slam," says Goerges. "She's a big fighter and I just told myself to be aggressive." Goerges, the world No. 72, won despite struggling with sniffles all they way though the match.
Reigning US Open champion Marin Cilic powers himself into the third round of Roland-Garros for the fourth straight year. It's the au revoir to Italian qualifier Andrea Arnaboldi, who put up a strong fight in the first set.
And the second set between Julia Goerges and Caroline Wozniacki will be settled in the tie-break. Goerges struggling to find her serve when she attempted to close out the match.
Caroline Wozniacki finds herself in deep water on Philippe-Chatrier. The Danish fifth seed double faults - at exactly the wrong time - to hand Julia Goerges a vital break. A shout of "Come on Caroline," from the crowd but it's the German who will now serve for the match.
A quick look at Court 17 where Leonardo Mayer, the 23rd seed from Argentina, has a two-set lead over Poland's Jerzy Janowicz. On Court No.3, Carina Witthoeft and Italian 17th seed Sara Errani are also level, as are Bulgaria's Sesil Karatantcheva and Irina Falconi.
We have a breakthrough on Court 1. Svetlana Kuznetsova wins a tight and tense tie-break 13-11 to take the opening set from feisty opponent Francesca Schiavone, who saved six set-points. The first set lasted a breathless 82 minutes. Can the former Roland-Garros champs keep up this level of intensity? For us watching, we hope so!
For those of you wondering what's happening on Centre, then we can tell you that Julia Goerges has just broken fifth seed Caroline Wozniacki to love. We do not know where to look, there is so much happening!
I'd like to tell you a bit more about the full-throttle second-round match between Francesca Schiavone and Svetlana Kuznetsova but I'm waiting for one of them to win the set. Schiavone sent Kuznetsova dashing round the court to save two set points, against the Italian that is. There is nothing to separate them... and I may have cursed it writing that.
Over on Suzanne-Lenglen, the crowd are bracing themselves for one of two things - another upset or another thriller, maybe both? Petra Kvitova, the fourth seed here, has lost the first set to Spain's Siliva Soler-Espinosa 7-4 in the tie-break
That exciting all-Australian match-up between Bernard Tomic, the 27th seed, and Thanasi Kokkinakis, playing in his first French Open, is about to begin on Court 7.
Marin Cilic, playing Andrea Arnaboldi, uses a familiar combination of big serves and big power to take the tie-break 7-3 and with it the first set.
Julia Goerges serves out the first-set without dropping a single point in the 10th game. The German, a runner-up here in the mixed doubles last year, is breathing hard out on Philippe-Chatrier but she has the upperhand against fifth seed Caroline Wozniacki.
It's been nine years since Marin Cilic and Andrea Arnaboldi last met and that was on the clay in a Challenger event in Genoa. Well, the Italian qualifier is pushing the 2014 US Open champion hard in their second-round meeting here and Cilic has to work to take the opener into a tie-break. Stand by.
Julia Goerges has pulled back from 3-1 down to lead Caroline Wozniacki over on Philippe-Chatrier. It's a colourful encounter in more ways than one with both players wearing yellow. Caro in a sunflower shade with Julia wearing more of a lemon shade.
We're keeping a close eye on that match between Francesca Schiavone and Svetlana Kuznetsova on Court 1. By the way the match the pair played at the 2011 Australian Open is in fact the longest-recorded women's singles match in Grand Slam history, lasting four hours and 44 minutes.
The crowd are continuing to pour into Court Philippe-Chatrier and they're arriving at a good time because it's back on serve thanks to a break from Julia Goerges, the world No.72.
Petra Kvitova returns to her seat with a fist pump after holding serve against Spain's Silvia Soler-Espinosa over on Court Suzanne-Lenglen.
Some fierce exchanges between Julia Goerges and fifth seed Caroline Wozniacki on Court Philippe-Chatrier and it's the Dane who has the early break.
A quick look over at that match on Court 1 and Francesca Schiavone, the French Open champion in 2010, is a break up after 13 minutes of play. Svetlana Kuznetsova nets to hand her the break.
Cast your mind back to the 2011 Australian Open and you might remember a women's match that became an instant classic. It featured Francesca Schiavone and Svetlana Kuznetsova and lasted nearly five hours. The former French Open champions are renewing their rivalries on Court 1 now. Are we in for another delightful ding-dong? Let's hope so.
Ahh the sound of fuzzy yellow balls hitting racquets is resounding around Roland-Garros. It must mean play is about to begin. Hands up if you're ready for another day on the clay!
Francesca Schiavone (Ita) v Svetlana Kuznetsova (Rus) 
Lucie Hradecka (Cze) v Victoria Azarenka (Blr) 
Jeremy Chardy (Fra) v John Isner (USA) 
Daniel Gimeno-Traver (Esp) v David Ferrer (Esp) 
There were a few quirky stories around the grounds yesterday including Czech mates - we never tire of that here at Blog HQ - Tomas Berdych and Radek Stepanek facing each other on the clay. Roland-Garros.com reporter Matt Cronin was there watching from the sidelines and scribbled this report.
For those of you who stayed with us until the sun went down on Pablo Andujar and Philipp Kohlschreiber's five-setter yesterday, we can tell you that those chaps will be back on Court 3 later today. They follow Carina Witthoeft v Sarah Errani, the 17th seed here.
Petra Kvitova (Cze)  v Silvia Soler-Espinosa (Esp)
Serena Williams (USA)  v Anna-Lena Friedsam (Ger)
Novak Djokovic (Srb)  v Gilles Muller (Lux)
Richard Gasquet (Fra)  v Carlos Berlocq (Arg)
The crowd on Court Suzanne-Lenglen had a brilliant day yesterday, seeing Roger Federer and Sam Stosur tick off entertaining wins before Mirjana Lucic-Baroni shocked 2014 runner-up Simona Halep. French fave Jo-Wilfried Tsonga stormed to a quick win to close play. Those with Suzanne-Lenglen tickets can count yourself lucky again...
Julia Goerges (Ger) v Caroline Wozniacki (Den) 
Nicolas Almagro (Esp) v Rafael Nadal (Esp) 
Andy Murray (Gbr)  v Joao Sousa (Por)
Danka Kovinic (Mne) v Kristina Mladenovic (Fra)
Welcome to day five of #RG15. It's another glorious day here which is just as well as we have some special players on court today who deserve to bask in the Parisian sunshine. Thank you for joining us.
We'll see those fellas on an action-packed day five at #RG15. It's au revoir for now. Please come back and join us at 10:30 tomorrow.
We can spy pink skies blooming over Blog HQ at that can only mean one thing, the match between Pablo Andujar and Philipp Kohlschreiber has been suspended for the day.
Just a reminder that Julia Goerges opens up on Court Philippe-Chatrier against Danish fifth seed Caroline Wozniacki on Thursday. Following that pairing will be Rafael Nadal, Andy Murray and French hope Kristina Mladenovic, who downed Eugenie Bouchard yesterday. For details of the draw for day five, may I direct you to the full run-down?
German Philip Kohlschreiber, the 22nd seed, is a break to the good in the decisive fifth set of his encounter with Spain's Pablo Andujar. The light is dwindling here at Roland-Garros but the play continues and the crowd show their appreciation with a Mexican wave.
And it's been a good day on the clay for 2008 champion Ana Ivanovic, who sees off the challenge of Japan's Misaki Doi in three sets. The seventh seed beams and then stops to sign a few autographs despite the late finish, which also makes the crowd happy.
Serving for the match, Ana Ivanovic has a bit of a wobble. She hits wide to concede the break and, after a solid service game from Misaki Doi, the seventh seed must try again for a second time.
Philipp Kohlschreiber bites off a chunk of an energy bar. He deserves a snack as he has just levelled his match against Pablo Andujar. Coats are being pulled on in the crowd as they settle in for a fifth.
Among the stars out and about on the courts of Roland-Garros today was Martina Hingis, a two-time winner in Paris in 1998 and 2000. The Swiss is back on a doubles charge with partner Sania Mirza and the duo are the top seeds at #RG15. A quick 6-3 6-0 win over Julia Goerges and Barbora Krejcikova kickstarted their campaign. You can read more on the return of a legend in Roland-Garros.com reporter Kate Battersby's feature.
Are we heading for a five-setter over on Court 3? Philipp Kohlschreiber is reeling in his deficit to Pablo Andujar. The German has been known to get himself involved in a marathon match or two and to prime himself for this evening's contest he's been hitting with Roger Federer on the Paris practice courts.
There will now be a small break at Blog HQ to sustain us through the final two matches. We will be back by 20:45. Please do return for the day four denouement.
Makarova's win has sparked a small chorus of "Eh, Mak-a-rova" to a familiar tune at Blog HQ. I think you can guess what the tune is...
And we have another result to tell you about. Russian ninth seed Ekaterina Makarova is through to meet compatriot Elena Vesnina in the next round thanks to a three-set win over Brazil's Teliana Pereira.
The Italian 28th seed Flavia Pennetta needs just 51 minutes to sweep past Slovakia's Magdalena Rybarikova and book a third-round meeting with Spain's Carla Suarez-Navarro.
Live jazz, 250 ballkids and messages written in the clay. See these things and more in our #RG15 photos of day four.