French Open semi-finals - listen to live radio commentary at top of page (UK only)
Qualifier Maja Chwalinska stuns Diana Shnaider 7-6 (7-4) 6-4 to reach final
World number 114 Chwalinska is first qualifier to reach a Grand Slam singles final since Emma Raducanu in 2021
The Pole has won nine matches in Paris, having previously only won two matches at any major
Chwalinska is the first qualifier in the Open era to reach the final at Roland Garros
She will face Mirra Andreeva, who beat Marta Kostyuk 6-1 6-3, for title on Saturday
*Kostyuk 1-6 0-1 Andreeva
Image source, Getty ImagesThat just about sums it up for Marta Kostyuk so far, as her shot hits the net cord but bounces back on to her side.
Mirra Andreeva comes through a first real test on serve to get up and running in set two.
Kostyuk 1-6 0-0 Andreeva*
Marta Kostyuk shakes her fist to the crowd as she guides a sublime forehand winner down the line for deuce on Mirra Andreeva's serve.
Can she make a breakthrough at the start of set two?
A missed backhand from the Russian hands her a break point, but Kostyuk can't take advantage for now.
Kostyuk 1-6 0-0 Andreeva*
Mark Woodforde
17-time Grand Slam doubles champion on BBC Radio 5 Sports Extra 2 and BBC Sounds
It is going to be a real test for Kostyuk.
That was an exceptionally well played first set from Andreeva.
Image source, Getty ImagesThat first set is a huge surprise, because nobody on tour can match Marta Kostyuk's record on clay this season.
The 23-year-old is on a 17-match winning streak on the surface, with 16 successive wins at Tour events and one in the Billie Jean King Cup Qualifiers.
She is the only player undefeated so far this season on clay at WTA level, and has beaten Mirra Andreeva twice this year - including in the Madrid final last month.
The first Ukrainian to reach the women's singles semi-finals at Roland Garros in the Open Era, she is seeking to become the first Ukrainian woman to reach a major singles final.
Kostyuk 1-6 0-0 Andreeva*
David Law
Commentator on BBC Radio 5 Sports Extra 2
Marta Kostyuk is not controlling the ball anywhere near as well as Mirra Andreeva.
At the moment, Andreeva is playing on autopilot, and it is all going well.
Kostyuk 1-6 0-0 Andreeva*
Marta Kostyuk is relieved to see Mirra Andreeva miss on break point, but the Ukrainian returns the favour to give her opponent another opportunity.
With little over 30 minutes on the clock, Kostyuk nets to concede the first set. This is getting away from the 15th seed remarkably quickly here and she needs to change things if she's going to have any hope of turning this around...
*Kostyuk 1-5 Andreeva
The crowd rally behind Marta Kostyuk as she takes the opening point on serve.
There's a lot of love for her out there - and a desire to see a competitive semi-final.
The Ukrainian has been backed into another corner, however. From 30-15, she finds herself up against another break point.
*Kostyuk 1-5 Andreeva
Mark Woodforde
17-time Grand Slam doubles champion on BBC Radio 5 Sports Extra 2 and BBC Sounds
We have all witnessed some of those moments when Mirra Andreeva has coughed up healthy leads and handed the match back to her opponent.
*Kostyuk 1-5 Andreeva
Image source, Getty ImagesMirra Andreeva is serving so, so well here.
After all that hard work by Marta Kostyuk to hold serve for the first time, she is powerless as her opponent quickly ticks off another game.
Kostyuk 1-4 Andreeva*
Mark Woodforde
17-time Grand Slam doubles champion on BBC Radio 5 Sports Extra 2 and BBC Sounds
Marta Kostyuk has only dropped two sets in the tournament.
There's a bit to try and navigate here...
The panic of scoreboard pressure is not looking great for Kostyuk.
Jonathan Jurejko
BBC Sport tennis news reporter at Roland Garros
Image source, Getty ImagesIt feels like Marta Kostyuk has got more of the support from the Court Philippe Chatrier crowd.
That might be partly because she is struggling to stop this opening set running away from her, but also because the Paris fans have largely been sympathetic to Ukrainian players.
There was warm, elongated applause here when Kostyuk dedicated her quarter-final win over Elina Svitolina to her nation. Several Ukrainian flags are visible today - including among Kostyuk's guests.
Andreeva promised to play the opponent not the occasion and the Russian teenager is doing a good job of that so far.
Kostyuk 1-4 Andreeva*
Well, that will do Marta Kostyuk a world of good.
The 23-year-old certainly has the crowd on her side as she holds firm under intense pressure on Court Philippe Chatrier.
Kostyuk faces up to five break points before finally escaping as Mirra Andreeva narrowly misses the baseline with another fizzing backhand. Phew.
*Kostyuk 0-4 Andreeva
Marta Kostyuk sees off a third break point, but a fourth soon comes around. It's relentless stuff from Mirra Andreeva and Kostyuk is not hiding her emotions.
The Ukrainian lands a forehand winner for deuce, but Andreeva reaches break point number five...
*Kostyuk 0-4 Andreeva
Another stunning backhand winner from Mirra Andreeva brings up two more break points.
Marta Kostyuk stares into the distance. Everything is happening to her right now - and there seems to be very little that she can do to prevent that.
But the crowd show huge appreciation as she digs deep to recover to deuce. How she needs this game...
*Kostyuk 0-4 Andreeva
Mark Woodforde
17-time Grand Slam doubles champion on BBC Radio 5 Sports Extra 2 and BBC Sounds
Marta Kostyuk might be thinking; 'OK, this set is not looking great.'
A good percentage of first serves from Mirra Andreeva, and it seems like on the first two games she has served that she hasn't been looking for those corners.
*Kostyuk 0-4 Andreeva
Image source, Getty ImagesImpressive stuff, this, from Mirra Andreeva.
The Russian teenager drives a powerful forehand deep into the court and Marta Kostyuk can't get her racquet behind it.
Another game on the board. Andreeva is absolutely flying through this first set.
Kostyuk 0-3 Andreeva*
A superb serve from Mirra Andreeva on an important fourth point, catching the line to restore parity with a timely ace at 30-30.
But that's an excellent shot from Marta Kostyuk, switching things up with a clever drop shot from just inside the baseline to reach deuce.
Can the Ukrainian build on that now?
Image source, Getty ImagesGreat Britain's Henry Patten and Finland's Harri Heliovaara have secured their place in the men's doubles final.
The pair continued their bid for a third Grand Slam title together by defeating French duo Quentin Halys and Pierre-Hugues Herbert 6-3 6-4.
Having won Grand Slam titles at Wimbledon in 2025 and the Australian Open in 2025, they will seek a first French Open triumph when they face either top seeds Marcel Granollers and Horacio Zeballos or Italians Simone Bolelli and Andrea Vavassori in this weekend's final.
Kostyuk 0-3 Andreeva*
Mark Woodforde
17-time Grand Slam doubles champion on BBC Radio 5 Sports Extra 2 and BBC Sounds
That's a huge game. In these big matches, if you come out and break serve in that first game and if you have some nerves it evaporates them even more. This is the maturity of Mirra Andreeva.
Andreeva with a really nice start. If she can consolidate the double break, then you can virtually say that set is hers.
Kostyuk 0-3 Andreeva*
Mirra Andreeva has certainly settled quicker here.
That is very evident as she hammers a winner into the corner, as she sets up a couple more break points.
Marta Kostyuk does well to see off the first with a big first serve - but Andreeva takes the second to take control of the opening set.
