Day eight - women's quarter-finals and doubles action
Serena Williams beats Camila Giorgi to reach semi-finals
Williams beats Italian 3-6 6-3 6-4 and will face Julia Gorges
13th seed Gorges fights back to see off Bertens 3-6 7-5 6-1
11th seed Kerber defeats Kasatkina 6-3 7-5 and will play Ostapenko
12th seed Ostapenko overcomes Cibulkova 7-5 6-4
Del Potro beats Simon in four sets to reach men's last eight
GB's Dominic Inglot and Franko Skugor reach men's doubles semi-final
Cibulkova* 1-1 Ostapenko
This time it's Dominika Cibulkova who puts the pressure on and she breaks back at the first time of asking.
We could be in for a long match here...
Image source, Getty Images*Kasatkina 0-3 Kerber
Angelique Kerber is giving Daria Kasatkina a lesson in how to start a match here. The 30-year-old is hitting everything deep and is forcing her opponent back. Kerber has won 10 of the last 11 points.
Image source, PACibulkova 0-1 *Ostapenko
Jelena Ostapenko came up with six break points straight away and has the made the perfect start.
Dominika Cibulkova is already on the backfoot.
Click here to watch the match live
Ostapenko breaks in the first game
Kasatkina 0-2 Kerber*
Another double from Daria Kasatkina gifts Kerber the break of serve. Let's hope nerves from the young Russian don't ruin this match.
*Kasatkina 0-1 Kerber
Maybe that's a sign of the nerves John McEnroe mentions. 21-year-old Daria Kasatkina double faults on her first service point.
Leftie Kerber is grunting and groaning on every shot. She's hitting with more power now.
Two break points to the German.
*Kasatkina 0-1 Kerber
John McEnroe
Three-time Wimbledon singles champion on BBC TV
Kasatkina is still working through the nerves. She should have broken already.
This is Kerber's 10th quarter-final appearance and only Kasatkina's second. That is a big difference, particularly here on this court.
Image source, Reuters
Saj Chowdhury
BBC Sport at Wimbledon
It’s that familiar Nadal service pose.
The Spanish former champion is into his first quarter-final since 2011, and today braved the Wimbledon chill by sticking with his trademark sleeveless top during practice.
He will play either Juan Martin del Potro or Gilles Simon next, so the French Open champion will have to be in peak condition.
*Kasatkina 0-1 Kerber
Daria Kasatkina described herself as an artist before this match and she is showing plenty of variety in her strokes early on. Lots of backhand slices, now a chip and charge.
Kerber is playing more standard, baseline tennis and it sees her through the game.
Kasatkina 0-0 Kerber*
John McEnroe
Three-time Wimbledon singles champion on BBC TV
Kasatkina is a stylist, she uses a lot of spin and variety. She is not the biggest hitter but boy she is making an impact.
Kasatkina 0-0 Kerber*
Daria Kasatkina's white dress is being blown around a little at the back of the court so the wind must be getting inside Centre Court.
The Russian has started well, landing a couple of early blows. Kerber fights off one break point but we're stuck at deuce in this opening game.
Kasatkina 0-0 Kerber*
Kasatkina 0-0 Kerber*
The Centre Court stands are not yet full but the players are ready.
Angelique Kerber will serve first.
Del Potro 7-6 (7-1) 7-6 (7-5) 5-7 Simon
There is no rest day for fifth seed Juan Martin del Potro and Gilles Simon of France whose fourth round tie is about to get back underway on court two.
Delpo took the first two sets but Simon hit back to win the third before play was suspended on Monday night.
Image source, Getty ImagesKerber v Kasatkina
John McEnroe
Three-time Wimbledon singles champion on BBC TV
Kasatkina is my new favourite, she mixes it up, throws of here opponent and makes things uncomfortable.
As for Kerber she seems back, to where she was a couple of years ago when she was winning grand slams. She has got the confidence back and people will really enjoy this match.
Kerber v Kasatkina
The players are out on Centre and Court One.
On Centre Angelique Kerber is making her fourth appearance in a Wimbledon quarter-final, Daria Kasatkina her first.
Is the German the favourite?
Billie Jean King
Six-time Wimbledon champion on BBC TV
I think experience speaks highly, but these young guns don’t care. They want to make their mark and this is the dream, the moment of truth.
So it will be interesting to see how they handle the pressure and adapt to the wind, the heat, whatever comes their way. Champions adjust and pressure is a privilege.
Cibulkova v Ostapenko
These stats point the way of Cibulkova but Jelena Ostapenko does have a Grand Slam title to her name...
Image source, BBC SportCibulkova v Ostapenko
Image source, Getty ImagesNeither Jelena Ostapenko or Dominika Cibulkova have dropped a set yet in this competition so something has to give.
Cibulkova has been fired up - belting out her catchphrase "pome" at every opportunity - perhaps upset that she was overlooked for a spot among the seeds in this tournament with Serena Williams taking her place.
Ostapenko comes into these quarter-finals under the radar a little but she is a Grand Slam champion of course.
Will she add to her 2017 French Open crown?
In less than five minutes the players will be out for the quarter-finals on Centre Court and Court One.
Angelique Kerber v Daria Kasatkina is first up on Centre while Dominika Cibulkova is over on Court One.
#bbctennis
Murray will also be commentating on the men's quarter-finals tomorrow.
That's got us thinking. Who would make your dream tennis commentary partnership?
And don't keep it just to tennis.
I'm going for Roger Federer and Sir David Attenborough.
Let me know your thoughts!