Daniel Altmaier lets out a roar as his backhand drops just inside the baseline to secure him a break early in the fourth set.

He had kept the pressure up on Arthur Fery's serve and despite the Briton producing a timely ace at deuce, Altmaier kept going to earn the advantage in the set.

Charlotte Coates
BBC Sport at Wimbledon

It’s not often you see this but both players are having a medical time out on court 16.

Looks as Daniel Altmaier has a glute issue while Arthur Fery is struggling with his quad.

Play is back under way now - it’ll be interesting to see how both move around the court.

Image source, BBC Sport

Naomi Osaka is on the board in the second set with a thumping serve but Diane Parry follows it up with a quick hold.

Osaka just wasn't expecting Parry to come out so fast.

A deciding set seems likely.

Madison Keys takes the first set on Court One, where Aryna Sabalenka was meant to be in action before her injury withdrawal earlier today.

Martina Trevisan will rue a missed opportunity a few games back when she failed to convert two break points to go up 4-2.

The Italian was then 40-30 on serve in the next only for a net chord to affect Trevisan's rhythm just enough that she sent a forehand long.

Keys seized that opportunity and at break point, hit a dipping shot with Trevisan at the net and Italian's volley found the net.

What could have been 4-2 Trevisan, was quickly 5-3 Keys and she served it out to move a set ahead.

Watch highlights as Emma Raducanu beat a top-10 opponent for the first time in her career and saved a match point to defeat Jessica Pegula 4-6 7-6 (8-6) 7-5 to reach the quarter-finals at Eastbourne last week.

Alan Jewell
BBC Sport at Wimbledon

After such a fast start, Naomi Osaka's shoulders have slumped a little having fallen 3-0 behind in the second set against Diane Parry.

Osaka had a chance to break back in the previous game but could not convert. The crowd on court two are behind her and trying to gee her up again.

Defending champion Carlos Alcaraz: "He [Mark Lajal] played a really good match, he obviously surprised me a little bit because I didn't have the chance to see him play a lot. He has a great level, he's really young, my age. I'm sure I will play against him even more on the tour and I'm really happy to get my first win on Centre Court this year."

On playing on Centre Court: "Stepping on this court, the centre court of Wimbledon, it is the most beautiful court that I have played on. I still get nerves when I am playing here. I played for 45 minutes here on Thursday and it is the first time I get nervous practising. I'm glad and I am a privileged guy to play on this court."

On getting flashbacks to last year's win: "A little bit but this is a new year, a totally different tournament, I have to be focused on my game. When I walk around I get goosebumps as I walk around. I remember last year and that was a great feeling."

Emily Salley
BBC Sport at Wimbledon

Image source, PA Media

Expectations were high for Emma Raducanu when she reached the fourth round at Wimbledon as an 18-year-old in 2021.

They rose even higher when she claimed an astonishing Grand Slam title at the US Open just a couple of months later.

But optimism around Raducanu has wavered as she has struggled to reach the staggering heights of three years ago - not helped by an injury-plagued 2023 season.

But this is a summer of "new starts" for Raducanu, who has put together a solid grass-court season, reaching the semi-finals in Nottingham and claiming her first top-10 win at Eastbourne.

Former British player Naomi Broady said: "Emma won't be a name anyone wants to see next to theirs.

"She isn’t the firm favourite to win every match and I say that as a positive thing. I think sometimes when you are more of the underdog you can play more freely."

Well, we didn't see this coming.

Diane Parry has just stepped up the intensity and is giving Osaka no time to respond.

A Hawk-Eye decision goes her way and it's 2-0.

After missing last year's tournament with injury, Emma Raducanu is back at Wimbledon and arrives in decent form.

The former US Open champion reached the semi-finals in Nottingham and the quarters at Eastbourne as she attempts to put her injury problems behind her.

"I think I'm in a really good place," said Raducanu. "I did a good chunk of work at the end of the year to get back and healthy. I've continued that work throughout this year.

"I feel good in my body. There are no doubts."

There has been a late change of opponent for Raducanu after Russian 22nd seed Ekaterina Alexandrova pulled out with illness this morning.

Mexican lucky loser Renata Zarazua, who is ranked 98th in the world, replaces her.

Image source, Getty Images

Alan Jewell
BBC Sport at Wimbledon

"She's painting the lines," says a woman sat behind me, as Naomi Osaka sends a forehand zinger flying past Diane Parry.

Two points later and Osaka and the spectator repeat the scene - "she's painting the lines, seriously" - when another Osaka winner helps her race through the opening set on court two.

Two forehand return winners helped Osaka to get her second break of the first set and three more winners in the next game allowed her to serve it out.

Very impressive so far from the 26-year-old.

A second match point for Alcaraz.

Charlotte Coates
BBC Sport at Wimbledon

It may now be overcast at SW19 but it’s still pretty warm - especially if you’re sat outside all day.

The line judges have a little bag along with their water bottles. I wonder if they’ve got any sweets in their bags? I know I would.

Image source, BBC Sport

Image source, EPA

Matteo Berrettini, the 2021 runner-up, has beaten Marton Fucsovics of Hungary in four sets to reach round two.

He could face world number one and fellow Italian Jannik Sinner in the next round...

Lajal sprays a forehand from the baseline wide, 30-15, Alcaraz two points from the finish line.

As Charlotte mentioned, we had a lengthy wait for the fourth set to get going as Daniel Altmaier disappeared from Court 16 for what we were told was a toilet break.

Altmaier is back and we're under way once again in what is a crucial set with British wildcard Arthur Ferry looking to seal a spot in round two.

Fery puts the pressure on immediately and has three chances at a break point but Altmaier eventually manages to hold.

Image source, PA Media

Osaka has won the first set and we can't keep up.

Every ball she hits is perfection, including a powerful backhand that has wrapped this first set up in 22 minutes.

Mark Lajal looks like he's loved every second of his Wimbledon experience and holds off a match point for Carlos Alcaraz, although the Spaniard will now serve for the match.

Not this time. Carlos Alcaraz mistimes a forehand and balloons it long, so back to deuce.