As JJ says, play will resume on the outside courts not before 15:45 BST.

That means Jack Draper, who is two games away from forcing a fifth set against qualifier Jesper de Jong, could be walking back out on to court in 15 minutes or so.

Jonathan Jurejko
BBC Sport at Roland Garros

Brighter skies have replaced the rain clouds, although there are still some stratus lurking above.

No play on the outside courts until 15:45 BST at the earliest.

Carlos Alcaraz misses one point for the match but he makes no mistake at the second time of asking.

Yes, J.J. Wolf wasn't much competition but Alcaraz is off to a flying start as he goes in search of his first French Open title.

Despite still wearing that supportive sleeve on his right arm, there were no signs of any injury problems for Alcaraz as he dropped just four games inside two hours on court.

J.J. Wolf is starting to show more of what he's capable of but it's far too late.

He hit a beautiful forehand winner past Carlos Alcaraz but the Spaniard is now one game away from the next round.

Well, that encouragement was short lived for J.J. Wolf as Carlos Alcaraz breaks straight back to take a strong hold on this set once again.

Alcaraz is just two games away from the second round.

Better from J.J. Wolf to force deuce off the Carlos Alcaraz serve.

A powerful, flat forehand was a rare winner for the American to earn his first break point - which he brilliantly closed out.

Finally some encouragement for Wolf.

The weather forecast only gave a small chance of rain, but tell that to the few spectators who have decided to stay put on court 12 and huddle under their umbrellas.

While Carlos Alcaraz's match against J.J. Wolf carries on under the roof of Court Philippe-Chatrier, play has been suspended on the outdoor courts.

Hopefully it's only a short shower and we'll be back under way soon.

A string of winners are coming off the racquet of Carlos Alcaraz now with J.J. Wolf understandly looking dejected.

It's another break for the third seed, who will no doubt find himself in the second round soon enough.

Just after Jack Draper gets that hold, the players are rushed off the court and the covers are being pulled over.

And just in time! The rain has started lashing down in Paris.

We're racing through these games.

Just like Jesper de Jong, Jack Draper holds to love. Although, the British number two does it in much better fashion, firing home an ace.

The roof being closed hasn't seemed to hamper Carlos Alcaraz as the Spaniard breaks J.J. Wolf in the opening game of the third set.

Too easy for Alcaraz.

That's better from Jesper de Jong, who gets himself on the board in this fourth set.

He secures the hold to love with a piercing forehand to the back corner of the court.

Play will soon be back under way on Philippe-Chatrier with the roof in the process of closing due to some drizzle in Paris.

It's all going rather well for Jack Draper. After wrapping up another straightforward hold and taking a 3-0 lead, a deciding set is looking increasingly likely.

Jonathan Jurejko
BBC Sport at Roland Garros

If Jack Draper is going to win this, he has to go all the way.

Only once has the Brit played a five-set match - when he came through in brutal conditions at this year's Australian Open to beat Marcos Giron.

That felt like a landmark moment in the 22-year-old's career, showing he had built up the physical and mental resilience to overcome adversity.

In his pre-tournament media here at Roland Garros, Draper said that win had given him added confidence and he's going to need to dip into that now.

But Jack Draper has another break point as he comes to the net before slamming down a return at the net.

And he gets it this time! A miss from Jesper de Jong gives Draper an early lead in this fourth set.

Oh dear. Another lengthy rally, but this time it goes the way of Jesper de Jong as Jack Draper fires wide.

Carlos Alcaraz eases into a two-set lead over J.J. Wolf with some very comfortable tennis from the third seed.

Wolf is trying his best to raise his level and give the Spaniard something to think about but it's proving rather difficult so far.

Just one hour and 15 minutes on court and it's all going to plan for Alcaraz.

Image source, Getty Images

Fantastic stuff from Jack Draper, who ends a monster rally with a superb little drop shot.

That's break point for the British number two.

Image source, Getty Images

There's plenty happening in the women's singles.

Ninth seed Jelena Ostapenko looks in control against Romanian Jaqueline Cristian. The Latvian has taken the first set on Court Suzanne Lenglen.

Ukrainian Marta Kostyuk's match with Brazilian Laura Pigossi has gone to a decider. The 18th seed took the first set but was beaten in a tie-break in the second.

And American Sofia Kenin, who reached the quarter-finals in 2020, is a set down to German Laura Siegemund, while Jessica Bouzas Maneiro of Spain is a set up against Croatian Jana Fett.