Muguruza beats Williams 7-5 6-4
Muguruza wins first Grand Slam title
Spain's first female champion since 1998
Williams must wait for 22nd major title
Use audio icon to listen live
*Williams 5-7 3-5 Muguruza
Hummm. Garbine Muguruza notches her fifth double fault of the set. Not ideal.
Luckily for her, she smashes over her third ace of the match to make things better.
And she overpowers Williams with a deep second serve to move to 40-15.
Another ace sees her hold and leaves her one game away from her first Grand Slam title. Wow.
Image source, APTweet #bbctennis
Matthew Vernon: I can't be the only one thinking how refreshing it is to see a player go toe to toe with Serena. First since Henin?
Williams 5-7 3-4 Muguruza*
Williams looks cool and composed as she moves to 30-0. She's not panicking just yet.
But Muguruza remains aggressive. She powers a backhand winner to snatch away a point from the world number one.
The American steadies herself and takes the game.
Jana Novotna
Former Wimbledon champion on BBC Radio 5 live
"That was a very impressive game from Muguruza. She played with a lot of power and a lot of precision."
*Williams 5-7 2-4 Muguruza
The pair do battle in two powerful rallies. Williams puts too much behind the ball and sends two wide of the lines.
Muguruza clenches her fist with joy as she holds. She's two games away from the trophy now.
Image source, APTweet #bbctennis
Jordan Harrop: Thoroughly enjoying the Women's French Open Final! It's such a joy to watch and Muguruza is on fire!
Michael Maw: Garbiñe is Muguruthless right now (sorry).
Williams 5-7 2-3 Muguruza*
I'm not a massive fan of players screaming and shouting on court, but when Serena does it you know she's pumped up for the fight, and we like a good scrap here.
She's 40-0 up, and although Muguruza pulls it back to 40-30, Williams is able to see it out.
And she lets out a lionesses-like roar to celebrate.
Image source, APJana Novotna
Former Wimbledon champion on BBC Radio 5 live
"Muguruza believes in herself and her game today really shows it. She's hitting with a lot of power and a lot of determination. She's really finding her range with the forehand and it's getting better and better."
*Williams 5-7 1-3 Muguruza
Do either of you want to hold serve for a bit? Ah, you do Garbine. Good news.
The fourth seed moves two games up in the second set with a forehand winner cross-court.
Jonathan Overend
BBC Radio 5 live
"You sense a growing support for Muguruza around Chatrier. They are willing her towards the upset here."
Williams 5-7 1-2 Muguruza*
As the old proverb says: "If in doubt, whack an ace down the middle".
Williams does just that to take the opening point before Muguruza takes control to move to 15-30 with another wonderful forehand winner.
The world number one hits into the net with a backhand and it's double break point to the Spaniard.
And Garbine Muguruza breaks AGAIN to lead 2-1. Blimey.
Image source, Reuters*Williams 5-7 1-1 Muguruza
Serena Williams has regrouped and now it's her chance to grab a break.
Muguruza saves it with an ace to move to deuce but the advantage moves to Williams as the fourth seed hits into the net.
They both grunt and screech their way across the back of the court and it's Muguruza who wins out with a forehand. Deuce again.
But Williams takes the game after two double faults from Muguruza. Costly.
Image source, Getty ImagesTweet #bbctennis
Ros Clarke: I love Serena, but it's so great to see her playing a worthy opponent for once.
Nana K: I think Serena is mentally weak and the heavy defeat of 2014 by Muguruza is going through her head. Still Serena...
Williams 5-7 0-1 Muguruza*
What's the world number one got up her sleeve?
Erm, well, at the moment, she's got a few errors. Williams is 15-30 down.
Make that 15-40, as Muguruza smashes cross-court. Two break points.
But she only needs one. The Spaniard is on fire (not literally).
Image source, Getty Images
Russell Fuller
BBC tennis correspondent in Paris
"Garbine Muguruza is playing in her first clay-court final today. The last player to play their first clay-court final at the French Open was Natasha Zvereva in 1988."
Zvereva lost 6-0 6-0 to Steffi Graf in 34 minutes.
Jonathan Overend
BBC Radio 5 live
"It's been fearless from the start from Garbine Muguruza, she's been matching Williams for power and unlike so many in Grand Slam finals before her, you sense she really believes she can win this final."
*Williams 5-7 Muguruza
What a finish!
Garbine Muguruza has the advantage and takes the set with a wonderful finish into the bottom corner.
What a contest this is turning out to be.
Image source, AP*Williams 5-6 Muguruza
The crowd are well behind Garbine Muguruza as she takes the advantage and earns set point.
On her second serve, she invites Williams into an aggressive exchange and the American comes out on top by slamming a forehand winner into empty space.
Back to deuce.
But Williams sends into the net and Muguruza has set point again...but she puts a forehand waaaaaaaaay past the whitewash. Deuce again.
Image source, Reuters*Williams 5-6 Muguruza
Serena Williams is doing her bit. She nabs the first point on Muguruza's serve.
And she moves to 15-30 as she launches aforehand winner straight down the middle whilst dangling in mid-air.
Muguruza double faults and hands Williams two break points.
The Spaniard saves one and saves a second with a wonderful ace. To deuce we go.
Image source, APJana Novotna
Former Wimbledon champion on BBC Radio 5 live
"Muguruza looks very composed on the court. She is putting a lot of pressure on Serena Williams and not showing any signs of nerves. Yes, she is making mistakes once in a while, but that's because she is playing a very aggressive style of tennis."