Novak Djokovic leads Hubert Hurkacz 7-6 (8-6) 7-6 (8-6) when play is suspended on Centre Court just after 22:35 BST
Women's top seed Iga Swiatek saves two match points in win over Belinda Bencic
Elina Svitolina beats Victoria Azarenka in deciding set tie-break - Azarenka booed off Court One
Andrey Rublev and Jannik Sinner book places in men's quarter-finals
Jessica Pegula reaches women's quarter-finals, while 16-year-old Mirra Andreeva moves through to fourth round
Jamie Murray wins in men's and mixed doubles matches
Swiatek 6-7 (4-7) 7-6 (7-2) Bencic
We're going to get the deciding set that this contest deserves.
From two match points down, Iga Swiatek stays alive at Wimbledon as she produces some of her very best tennis when it absolutely matters to take the tie-break 7-2.
This is so, so good.
Image source, ReutersSwiatek 6-7 (4-7) 6-6 (6-2) Bencic*
Tracy Austin
Two-time Grand Slam champion on BBC TV
Four fantastic forehands from Swiatek.
Swiatek 6-7 (4-7) 6-6 (6-2) Bencic*
Another excellent forehand from Swiatek, this time guided down the line, brings up four set points.
Azarenka 6-2 4-6 Svitolina
Victoria Azarenka has saved five break points - one of them a set point - to stay in this set.
But the sixth proved a step too far. Elina Svitolina really went for it - crushing forehand after crushing forehand eventually bullied Azarenka into submission.
Image source, Getty ImagesSwiatek 6-7 (4-7) 6-6 (5-2) Bencic*
Sam Smith
Former British number one on BBC TV
This is tennis' penalty shoot-out, right here.
Swiatek 6-7 (4-7) 6-6 (5-2) Bencic*
Winner, winner!
Swiatek refocuses, driving a cross-court forehand to perfection for 4-2.
Long from Bencic. The top seed is in the driving seat.
*Swiatek 6-7 (4-7) 6-6 (3-2) Bencic
Sam Smith
Former British number one on BBC TV
This is already a different breaker - every point against the serve.
*Swiatek 6-7 (4-7) 6-6 (3-2) Bencic
Nobody can hold their serve now!
It's so tense on Centre and it's beginning to tell. Swiatek gains two points on Bencic's serve for 3-2.
A rollercoaster start to the tie-break.
Swiatek 6-7 (4-7) 6-6 (1-2) Bencic*
A much better start for Swiatek this time around as she clinches the opening point on the Bencic serve with a forehand.
Swiatek can't believe that though. A poor shot drifts long to give Bencic a 2-1 advantage.
Image source, Reuters*Azarenka 6-2 4-5 Svitolina
Took her eye off the ball - what a time to do it. Svitolina balloons a forehand into orbit.
Deuce. Now advantage Azarenka after a ridiculous rally ended by an exquisite backhand volley from out wide that was very, very missable.
Swiatek 6-7 (4-7) 6-6 (0-0) Bencic*
Sam Smith
Former British number one on BBC TV
Swiatek refusing to buckle. This is bringing out the best from both women. What a contest.
Swiatek know this would be her first real test. What a champion.
Swiatek 6-7 (4-7) 6-6 (0-0) Bencic
This is brilliant. What a show Iga Swaitek and Belinda Bencic are putting on.
In the first set it was Bencic who refused to buckle, now it's Swiatek showing her mettle.
We go to a second set tie-break!
*Azarenka 6-2 4-5 Svitolina
Victoria Azarenka's sixth double fault and a long forehand take us from 30-0 to 30-30.
Elina Svitolina crunches in a return from a second serve and the Ukrainian has set point to level the match...
*Swiatek 6-7 (4-7) 5-6 Bencic
Oh my days.
This is stressful to watch. Goodness knows how that felt for these two out on the court!
Swiatek puts away a forehand for deuce.
Incredible scenes.
*Swiatek 6-7 (4-7) 5-6 Bencic
Two match points to Belinda Bencic!
My word.
*Swiatek 6-7 (4-7) 5-6 Bencic
Not the start Swiatek needed, framing a forehand horribly on the opening point.
That's why she's world number one though! A stunning cross-court backhand gets her level.
Unbelievable. The crowd show their appreciation for what is rapidly turning into one of the matches of the tournament after Bencic fires back for 15-30.
*Azarenka 6-2 4-5 Svitolina
The tenacity and technique on some of these rallies has to be seen to be believed.
The first set was a tad one-sided but this is developing into quite the match.
Elina Svitolina is right back in it - the rarely-seen overhead drop shot (yep) helps her to a latest hold. Can she break serve to level the match at one set all?
Image source, EPA*Swiatek 6-7 (4-7) 5-6 Bencic
Annabel Croft
Former British number one on BBC Radio 5 live
I wouldn't be surprised if we see a lot more balls directed into the corner towards the forehand side by Swiatek to see if she can get some cheap easy points out of it because it is that forehand that has started to unravel like it did in the first.
*Swiatek 6-7 (4-7) 5-6 Bencic
Sam Smith
Former British number one on BBC TV
Bencic just seems to have all the answers out here and all the antidotes to the awesome world number one.
*Swiatek 6-7 (4-7) 5-6 Bencic
Iga Swiatek sits down with her towel covering her head at the change of ends.
She can't afford any mistakes.
The crowd applaud the players back to court. Each point has significance from here.