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Results: Alfie Hewett (GB) bts Gordon Reid (GB) 6-2, 3-6, 6-4 - men's wheelchair singles
Momoko Ohtani (Jpn) bts Lucy Shuker (GB) 6-2, 6-2 - women's wheelchair singles
Diede de Groot (Ned) bts Dana Mathewson (US) 6-1, 6-1 - women's wheelchair singles
Heath Davidson (Aus) bts Andy Lapthorne (GB) 6-1, 6-3 - men's wheelchair singles
*Ram/Salisbury 6-3 7-6 (7-1) 6-7 (9-11) 1-2 Ebden/Purcell
If this men's doubles semi-final goes to a deciding set, Matthew Ebden could play eight sets of tennis today.
The Aussie teams up with compatriot Sam Stosur in the mixed doubles final later.
That's due on Centre Court after the women's singles semi-finals finish. Ebden is potentially not going to get much rest between the matches as things stand.
Rybakina 4-1 Halep*
Tracy Austin
Two-time Grand Slam champion on BBC TV
That is such a punishing backhand from Elena Rybakina - no holding back, terrific technique, great shoulder turn, terrific bold step forward into her shot.
Rybakina 4-1 Halep*
Amy Lofthouse
BBC Sport at Wimbledon
There was good, warm applause for Halep as she saved that break point and finally got on the board. The ball just hasn't sounded right coming off her racquet compared to the absolute thud that it makes from Rybakinas's.
Rybakina 4-1 Halep*
A forehand gets Elena Rybakina up and running as she looks to stay on track in the first set.
An error on the backhand brings Simona Halep level at 30-30, but Rybakina wriggles free from there as a Halep forehand loops beyond the baseline.
*Rybakina 3-1 Halep
Great battling from Simona Halep, though. The two-time major winner holds on and turns the game around to get on the scoreboard as Elena Rybakina strikes long.
That could very well have been the first set done and dusted if she'd surrendered a second break there.
Image source, Getty ImagesRybakina 3-0 Halep*
This is so good from Elena Rybakina so far. She forces Halep into the net and then bullies the world number 18 into another miss for break point.
Rybakina 3-0 Halep*
Can Simona Halep get herself up and running this time around?
She rushes forward to punish a drop shot from Rybakina with a forehand winner for 30-15.
Rybakina 3-0 Halep*
Tracy Austin
Two-time Grand Slam champion on BBC TV
Simona Halep is quite a lot smaller than a lot of her opponents but she continually puts pressure on the server, she's returning 81% of her serves, that is a lot of pressure.
Rybakina 3-0 Halep*
Amy Lofthouse
BBC Sport at Wimbledon
Rybakina is a deceptively powerful player. She makes it all look easy and effortless and it's drawn murmurs out of the crowd on Centre Court. Far too scrappy from Simona Halep first up.
Rybakina 3-0 Halep*
Elena Rybakina will have been dreaming of a start like this last night.
She does lose one point on serve this time, but that's all. Another solid service game gives her a 3-0 lead over 2019 champion Simona Halep.
Ram/Salisbury 6-3 7-6 (7-1) 6-7 (9-11) Ebden/Purcell
No, they can't!
Ram can only net from a powerful Matthew Ebden return.
We're going to a fourth set on Court One.
Five match points came and went for Joe Salisbury and Rajeev Ram.
*Rybakina 2-0 Halep
What a start for Elena Rybakina!
The 23-year-old breaks Simona Halep for a 2-0 lead. Simona Halep struggling to match her opponent's fast start.
Image source, Getty ImagesRybakina 1-0 Halep*
A double fault for Simona Halep.
It could prove costly. Break point Elena Rybakina.
Rybakina 1-0 Halep*
Elena Rybakina's fine start to the match continues as she draws a couple of errors from Simona Halep for a 0-30 lead...
A backhand winner helps kickstart the Romanian's run to game point, but Rybakina lands a smash for deuce.
*Ram/Salisbury 6-3 7-6 (7-1) 6-6 Ebden/Purcell
There are ways to save match points - and then there's this.
Rajeev Ram slams a return right at Max Purcell at the net - and it hits the frame of the Aussie's racquet to bounce away for one of the luckiest winners you'll see. No strings attached.
Can Ram and Salisbury recover from that blow?
Ram/Salisbury 6-3 7-6 (7-1) 6-6 (9-9) Ebden/Purcell
Sonia Oxley
BBC Sport at Wimbledon
The woman in front of me literally can't watch this, she's got her head in her hands and has turned the other way!
Rybakina 1-0 Halep*
Absolutely no problems whatsoever for Elena Rybakina in her first Grand Slam semi-final appearance.
An opening hold to love will certainly help settle any early nerves out on Centre Court.
*Rybakina 0-0 Halep
Amy Lofthouse
BBC Sport at Wimbledon
It is lovely on Centre Court; warm, sunny, the slightest of breezes.
Elena Rybakina has already made a piece of history by becoming the first Kazakh player to reach a major semi-final.
However, she faces a player in Simona Halep who is a former champion here and who, frankly, has absoutely blasted her way through her past two tricky matches against Paula Badosa and Amanda Anisimova.
*Rybakina 0-0 Halep
Here we go then.
Elena Rybakina gets the second women's semi-final under way!
*Ram/Salisbury 6-3 7-6 (7-1) 6-6 Ebden/Purcell
Brilliant overhead volley from deep in the court from Joe Salisbury brings up a fourth match point for the Anglo-American duo on Court One.
Can they take this one?
No! A net-cord double fault! Twice Salisbury's serve hits the top of the net and rebounds out.