Andy Murray wins 4-6 6-3 6-2 6-4 against James Duckworth on Centre Court
Emma Raducanu beats Alison van Uytvanck 6-4 6-4
Novak Djokovic wins 6-3 3-6 6-3 6-4 against Kwon Soon-woo
British number one Cameron Norrie beats Pablo Andujar 6-0 7-6 6-3
GB's Yuriko Miyazaki and Jodie Burrage beaten in women's singles
Seventh seed Hubert Hurkacz defeated by Davidovich Fokina
Van Uytvanck 4-6 4-4 Raducanu
Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live
Her body language from the first point, to see this amount of joy and happiness is so fresh to see.
Van Uytvanck 4-6 4-6 Raducanu
That was considered the toughest possible first-round opponent Emma Raducanu could have had.
Alison Van Uytvanck has enjoyed considerable success on grass in recent weeks. Add onto that the fact that Raducanu hadn't played much on the surface because of a side injury - it's so impressive from the 19-year-old.
She's thanking the crowd now, we'll bring you her full post-match interview ASAP.
Van Uytvanck 4-6 4-6 Raducanu
Huge smile from Emma Raducanu.
And she follows it up with a sort of skippy, spinny celebration as she waves at the crowd.
The Brit came to the net for a drop-shot. Alison van Uytvanck was good for that one, but had no chance when Raducanu batted a cross-court backhand in return.
Such a composed performance from the teenager to open her Wimbledon campaign.
Image source, Getty ImagesVan Uytvanck 4-6 4-5 Raducanu*
Ooft.
That looked so close to clipping the line. But Emma Raducanu doesn't want to challenge as her backhand is called wide.
Still two match points to go.
Van Uytvanck 4-6 4-5 Raducanu*
That's in the net from Van Uytvanck!
Van Uytvanck 4-6 4-5 Raducanu*
All good so far.
Emma Raducanu hits a couple of backhands into the bottom-right corner and the second one is out of Alison Van Uytvanck's reach.
30-0. Two points away.
Van Uytvanck 4-6 4-5 Raducanu*
Emma Raducanu takes some deep breaths in her chair.
The teenager has looked so calm considering its her first outing on Centre Court.
The crowd whistle, cheer and get out of their seats as she returns to the baseline.
Van Uytvanck 4-6 4-5 Raducanu*
Nerves from Van Uytvanck?
Her first serve is way long and the second comes closer, but still lands out.
Emma Raducanu will serve for the match.
*Van Uytvanck 4-6 4-4 Raducanu
Raducanu eats Van Uytvanck second serves for breakfast.
Her return is so powerful, the Belgian hoists a backhand into the sky.
Then Van Uytvanck nets and Raducanu has break point.
*Van Uytvanck 4-6 4-4 Raducanu
The first shouts of "Come on Emma" emerge from the crowd as Raducanu goes 15-0 up on Van Uytvanck's serve.
The Belgian still gets some applause of her own when she levels things at 15-15.
*Van Uytvanck 4-6 4-4 Raducanu
Laura Robson
Former British number one on BBC Radio 5 Live
The roars that we've heard from Emma this game have been huge. Getting everyone in her box and the crowd involved which is something she did so well here last year and at the US Open.
The rain has played a touch of havoc with the schedule, which has led to a number of matches being postponed.
Britain's Ryan Peniston and Katie Swan have had their respective matches against Henri Laaksonen and Marta Kostyuk cancelled for the day.
Fifth seed Maria Sakkari and former semi-finalist Jelena Ostapenko will also have to come back tomorrow for their openers.
Image source, Getty ImagesVan Uytvanck 4-6 4-4 Raducanu
Sam Smith
Former British number one on BBC TV
There's been plenty of cat and mouse out here this evening.
But that is a big, big hold.
*Van Uytvanck 4-6 4-4 Raducanu
That was a gutsy one.
Alison van Uytvanck threw a few spanners in the works but Emma Raducanu stays strong and holds as the Belgian's return goes long.
Van Uytvanck 4-6 4-3 Raducanu*
"Come oooon!"
That's the biggest shout of the day from Emma Raducanu. Straight out of the Andy Murray school of self-praise.
An ace down the middle brings up 30-30. Going 5-3 down in the second set would not be comfortable and the Brit knows that.
Van Uytvanck 4-6 4-3 Raducanu*
Lovely from Raducanu at the net. She comes forward and pops over a drop-shot.
Van Uytvanck manages to get there and the crowd holds its breath as her shot thinks about landing in. It doesn't, though. 15-15.
Alcaraz 4-6 7-5 4-6 7-6 (7-3) 0-0 Struff*
Harry Poole
BBC Sport at Wimbledon
A booming forehand from the racquet of Carlos Alcaraz reverberates around the arena. Four points on the bounce from the Spaniard seals the fourth set!
What a way to keep your tournament alive. But he was never going to go easily, was he?
Decider incoming...
Van Uytvanck 4-6 4-3 Raducanu*
Emma Raducanu was struggling with a side injury just before Wimbledon.
She's been looking fine so far today but surely wouldn't want to open her tournament with a three-setter.
Here's hoping the teenager can close this one out.
Van Uytvanck 4-6 4-3 Raducanu*
Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live
You can see that Emma Raducanu is starting to walk a little bit slower between points.
She needs to shorten her points, try to get it finished in two sets.
Van Uytvanck 4-6 4-3 Raducanu*
Unfortunately Raducanu hasn't got any more shots like that for this game.
Van Uytvanck whips a forehand on the angle to claim her hold.