Pat Cash
Former Wimbledon champion on BBC Radio 5 Live

These two players have the best service technique in the game. The technique is just perfect.

A hold at last!

Karolina Muchova gets this one done without any issues. A hold to 15.

Image source, PA Media

Serve dominating on Centre. Since Alexander Zverev's wobble at the end of the third set, neither player has had a sniff of a break point.

That continues as the German holds to 15, a series of superb serves meaning he barely needed to break sweat in any rallies.

Image source, Getty Images

An ace out wide followed by a scorching forehand that just kisses the line get Naomi Osaka off to the perfect start in her second service game.

But two errant backhands, one thumped long and the next into the net, get Karolina Muchova right back into it.

It gets to deuce before Osaka overcooks another booming forehand and Muchova has another break chance.

Taken! Another backhand into the net from Osaka and it's four breaks to start the match.

Henry Patten and Harri Heliovaara are heading towards a tie-break in the deciding set against Guido Andreozzi and Manuel Guinard.

The third set of the men's doubles quarter-final is going with serve, with neither pair earning a break point.

Jiri Lehecka giving second seed Alexander Zverev plenty of food for thought.

A crunching ace down the middle of the service box seals a hold to 15. The Czech has won 16 of 18 service points since today's resumption.

Martina Navratilova
Nine-time Wimbledon singles champion on BBC Two

I think Osaka is right back to where she was before she had her baby.

Image source, PA Media

Todd Woodbridge
Former Wimbledon doubles champion on BBC One

Alexander Zverev has type 1 diabetes so he has to deal with that constantly during matches.

He has proven to the sporting world that you can compete while dealing with something like that, but I would assume it affects his concentration levels and his ability to finish matches at times.

Where he might have ordinarily been more aggressive and powerful, you find he has to pull back a little bit until he is able to resurge again.

Third successive hold of serve to begin set four on Centre.

Alexander Zverev seems to have recovered his composure after that shaky start cost him the third set.

The Roland Garros champion still needs to make some of impact on the Jiri Lehecka serve though.

Martina Navratilova
Nine-time Wimbledon singles champion on BBC Two

I think Muchova has an edge on the moving but Osaka has improved that part of her game tremendously.

Naomi Osaka lasers a forehand winner to make an early statement in this game and soon earns another break point.

Neither player has started particularly confidently on serve and Karolina Muchova is broken again as Osaka rips a passing shot down the line.

Three breaks in a row to start this match.

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Jiri Lehecka finally loses a point on serve this afternoon...

Doesn't really matter, though, as the 24-year-old Czech was already 40-0 up when Alexander Zverev hit a tidy forehand winner.

Undeterred, Lehecka keeps booming down the big hits to force another Zverev error to wrap the hold of serve up.

Well then! That's a very impressive response from Karolina Muchova!

She breaks back immediately, helped by a double-fault from Naomi Osaka and then a very loose backhand that sails long.

Just the third time Osaka has been broken this year at Wimbledon and we're back on serve.

Image source, Getty Images

A real mix of a service game from Alexander Zverev - a couple of dominant points to go 30-0 up but some pretty unexpected unforced errors to let Jiri Lehecka back in to deuce.

He's nowhere near as clinical as he was when this game began last night - is the rising temperature on court affecting him?

Well, a booming serve down the middle followed by another out wide suggest not. Maybe he just needed time to settle - first game on the board for Zverev upon the resumption of this delayed fourth-round tie.

Strong start from Naomi Osaka and she quickly brings up two break points.

Early pressure on Karolina Muchova... and it tells.

A weak forehand into the net from the Czech and Osaka - who is hitting the ball crisply - has the advantage.

It's three wins apiece in the six previous meetings between these two.

Naomi Osaka has won the two most recent in Grand Slams but had to retire injured when they played just 10 days ago in the Hamburg final.

Here come the players on Court One.

Not quite the full kimono for Naomi Osaka today, a slightly - and I stress slightly - more low-key outfit for the four-time major winner.

Karolina Muchova wins the toss and elects to serve first.

Henry Patten and Harri Heliovaara have taken their men's doubles quarter-final into a deciding set - you can watch the conclusion on the BBC iPlayer.

Three games played. Alexander Zverev, the second seed, won one point.

Unreal from Jiri Lehecka.

A second successive hold of serve to love for the Czech, sealed by an ace down the T. That curfew last night looks to have done the 13th seed the world of good.

Goodness, Jiri Lehecka has come out firing.

Rocket returns from the Czech set up a 0-30 advantage and more than a sniff of a break.

Alexander Zverev replies by getting the best of a big-hitting rally - but Lehecka responds in kind on a similarly aggressive point for 15-40.

And Zverev can only send another fine return into the net. What a start from Lehecka!