Postpublished at 14:55 British Summer Time 4 June
Andreeva 6-7 (6-8) 3-6 Boisson
An emotional Lois Boisson steps up to the microphone.
Novak Djokovic beats Alexander Zverev 4-6 6-3 6-2 6-4 to reach French Open semi-finals
Djokovic will face Jannik Sinner next, after world number one beat Alexander Bublik 6-1 7-5 6-0 to seal spot in semi-finals
World number 361 Lois Boisson upsets teenage sixth seed Mirra Andreeva 7-6 (8-6) 6-3 to reach women's semi-finals
French wildcard Boisson will face Coco Gauff in last four
Gauff defeated fellow American Madison Keys 6-7 (6-8) 6-4 6-1 to reach semi-finals
Emma Smith, Jess Anderson, Bobbie Jackson and Millie Sian
Andreeva 6-7 (6-8) 3-6 Boisson
An emotional Lois Boisson steps up to the microphone.
Andreeva 6-7 (6-8) 3-6 Boisson
Lois Boisson is into the French Open semi-finals!
She's knocked out the third seed, she's knocked out the sixth seed.
Next up, it's second seed Coco Gauff.
She couldn't, could she?
Andreeva 6-7 (6-8) 3-6 Boisson
Lois Boisson drops to the clay flat on her back with her hands over her face as Mirra Andreeva's shot drops wide!
The crowd on Court Philippe-Chatrier erupt.
A warm hug from Andreeva at the net.
What a moment!!
*Andreeva 6-7 (6-8) 3-5 Boisson
Andreeva dumps her forehand into the net.
Three match points for Boisson.
This crowd could blow the roof off if it happens.
*Andreeva 6-7 (6-8) 3-5 Boisson
Boisson is in touching distance of this match.
She needs two points.
*Andreeva 6-7 (6-8) 3-5 Boisson
That's five games in a row for Boisson!
She puts the point away having saved two break points and takes the hold.
Andreeva 6-7 (6-8) 3-4 Boisson*
A big serve gets Boisson out of trouble, back to deuce we go.
Andreeva 6-7 (6-8) 3-4 Boisson*
Boisson saves break point but then is scampering side to side on the baseline as Andreeva dictates the next point and wins it with an overhead smash to bring up another break point.
Andreeva 6-7 (6-8) 3-4 Boisson*
Woops. Boisson skews one out and that hands Andreeva a break point.
Andreeva 6-7 (6-8) 3-4 Boisson*
Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra 2 and BBC Sounds
Interestingly enough, we saw Mirra Andreeva point to her box and one of her team members has actually just left.
She wants somebody out of there - maybe she wasn't appreciating the message she was receiving there...
Andreeva has basically lost it mentally here, will Boisson give her any hope to get back into this match?
Andreeva 6-7 (6-8) 3-4 Boisson*
It's catching.
Boisson double faults for 15-30.
Andreeva 6-7 (6-8) 3-4 Boisson*
Jonathan Jurejko
BBC Sport senior tennis reporter at Roland Garros
Things are getting a bit boisterous on Court Philippe Chatrier.
Andreeva's fit of anger, then arguing about a ball mark, does not endear her to the French crowd.
Jeers and whistles follow. They're even cheering missed serves now.
In Madrid, I spoke to Andreeva about these occasional teenage tantrums...
"I’ll be honest, it helps a little bit because my anger is getting out and I’m more calm and it’s easy for me to be focused on the next points," she said.
Let's see if it helps now...
Andreeva 6-7 (6-8) 3-4 Boisson*
Hawk-eye did, by the way, confirm the ball was out on that earlier point.
Andreeva was adamant it was in, but the umpire got it right.
Andreeva 6-7 (6-8) 3-4 Boisson*
Oh dear, it's all unravelling for Andreeva.
A double fault hands Boisson the break!
*Andreeva 6-7 (6-8) 3-3 Boisson
Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra 2 and BBC Sounds
One thing I love about Lois Boisson is she actually believes.
You can see that she is in the moment, she is in the present, she is taking each experience as it is, she isn't playing the name, she is just playing the ball.
This has been exceptional. She has a tattoo on her arm that says 'resilience' - that is exactly what she is, exceptionally resilient.
*Andreeva 6-7 (6-8) 3-3 Boisson
Andreeva is imploding. She fires long and then has a bit of an argument with the chair umpire, suggesting it was in fact in. That brings up break points for Boisson.
*Andreeva 6-7 (6-8) 3-3 Boisson
Andreeva receives a warning from the chair umpire after a big miss results in her whacking the ball into the crowd.
It's easy to forget sometimes with the way she plays that she is only 18 years old. It's a lot for the youngster to deal with but even so the crowd are not happy with that and they make their feelings known.
*Andreeva 6-7 (6-8) 3-3 Boisson
Andreeva won three games in a row. Then Boisson won three games in a row.
It's going to be another one of those sets, isn't it?
*Andreeva 6-7 (6-8) 3-3 Boisson
That's a big serve from Boisson at a crucial moment to save break point.
Andreeva misses the forehand then Boisson finds another big serve to take the hold.
Still on serve.
Andreeva 6-7 (6-8) 3-2 Boisson*
Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra 2 and BBC Sounds
This is quite impressive from Lois Boisson.
You can tell that she must be incredibly tired physically because most people would celebrate after a shot like that, but she just sits down as if it's normal.
She is showing signs of fatigue but Mirra Andreeva is showing signs of frustration.