Another backhand error from Kyle Edmund, and he's given Novak Djokovic another break point...

Saved with a backhand volley!

That's a great point from Kyle Edmund, meeting Djokovic's volley with a swipe of his own that beats the Serb as he throws himself after the ball.

40-40.

That's not a great drop shot from Novak Djokovic but Kyle Edmund rushes his approach and lifts his return into the net.

Break point Djokovic.

Alexander Zverev dusts off an opening double fault to serve out the third set.

The fourth seed has got a little lucky in this one, but the momentum certainly seems to be with the 21-year-old now...

Image source, Getty Images

Novak Djokovic slaps a lovely forehand winner at 15-15, and then instantly starts rowing with himself. He's not a happy bunny.

Kyle Edmund ensures his mood won't improve too quickly with a lovely backhand drive down the line, but a few easy returns sit up for Djokovic and we're at deuce.

Sue: Brilliant - come on Edmund

Toni: First set and first blood to Kyle Edmund. Another Lion is roaring

Ernests Gulbis' game is evaporating... he double faults to hand Alexander Zverev a break, and from 5-3 finds himself receiving to stay in the third set.

Here's the best rally of the match so far...

It's all going smoothly for Novak Djokovic, up 40-0, before he trips into a double fault.

It's only his third double fault of the tournament. A leap and a swipe with the forehand ensures the Serb holds first up.

Tim Henman
Former British number one on BBC TV

There was a lot of great tennis from Edmund, but fragility mentally from Djokovic, he looks frustrated.

He needs to be more proactive because Kyle is looking to be more aggressive earlier in the points.

Image source, Reuters

The trainer is coming out to tape up Kyle Edmund's fingers.

He's not a particularly exuberant player, Edmund, but he looks up for this one.

Novak Djokovic will serve to start the second set.

"Since when can a line judge give me a warning? He wants to feel important on a big court at Wimbledon," Zverev tells the chair umpire between the change of ends.

He takes some of that anger out in his next service game, zipping to a quick hold.

OOFT!

Kyle Edmund could not have picked a better time to find his first serve. Novak Djokovic thrusts his racquet forward despairingly, and doesn't get near the ball.

Centre Court roars in appreciation.

Kyle Edmund coughs up a big double fault first up, before a missed forehand puts Djokovic 0-30 up.

The Serb blazes a forehand into the net and then cracks another return long. Djokovic isn't happy, and he's even less impressed by the jeers from the crowd.

Terrific serve out wide from Edmund. Djokovic nets, and Edmund has set point.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

Walking out Djokovic would expect the crowd to not be on his side, understood that and used it as motivation.

When he expressed frustration and at not getting the respect Nadal and Federer got it motivated him and made him a better player. Over the last few years it seems like it gets in his head and bums him out.

Alexander Zverev wins a 22-shot rally, the longest of the match so far, he's going to challenge a wide call... but that was all gutter. Ernests Gulbis fluffs the next and it's two break-back points for the fourth seed.

Zverev cannot convert either, he's handed another break point... but now a line judge says Zverev has sworn? He breaks into an argument with the umpire, arms wide like a teenager protesting his innocence before slapping the net with his racquet in frustration.

Gulbis saves, but it's quickly a FOURTH break point chance for Zverev.

He takes it!

Novak Djokovic spends a few minutes chuntering away to himself, looking more than touch irked.

Here's why...

John McEnroe
Three-time Wimbledon singles champion on BBC TV

Novak Djokovic has tapped out mentally.

Novak Djokovic misses a forehand first up, but a few errors from Kyle Edmund and an outrageously good swipe take Djokovic to 40-15.

Boom. That'll be an ace, and Edmund will have to serve this set out.

Nokeeroe: Kyle Edmund's is holding his own against Djokovic. Come on Kyle!

Philip: Close match between Edmund and Djokovic, This tennis match looks as tense as watching a penalty shootout

Another fine serve out wide, chalk dust puffing up from the grass, and Kyle Edmund has another advantage.

Can he make it count this time? Yes he can, as a cross-court swipe from Djokovic takes a nasty bobble off the net!

Edmund is a game away from taking the first set!