The first break point of the match is a chance for Nadal after Sonego's forehand has too much juice on it, 30-40.

Anything Nick Kyrgios can do, Stefanos Tsitsipas can do just as well. The Greek wraps up a hold to love of his own with an ace.

And yes, Kyrgios is still chuntering away.

Image source, Getty Images

Nadal at 0-30 on the Sonego serve after the Italian gets no joy with a Hawk-Eye challenge and the 27th seed faces his first bit of danger today.

Neal Skupski and Desirae Krawczyk have begun the defence of their mixed doubles title and are in control of their match out on court 18.

Britain's Skupski and his American partner took the first set 7-5 against Thanasi Kokkinakis of Australia and Asia Muhammad of the United States, and broke early in the second set to build a 3-0 lead.

Kyrgios races through another service game to kick us off in the second set.

Another love-hold for the world number 40.

For the second time in a row Nadal wins a service game to love. For the last couple of points he moves to the net and finishes them off with backhand volleys.

The chair umpire got on the phone during the break.

"Get me out of here, please."(That's not what he said)

Image source, Getty Images

Pat Cash
Former Wimbledon champion on BBC TV

Tsitsipas just did what he had to do, came up with some good shots at the right time, ignored all the chit-chat.

Chris Peddy
BBC Sport at Wimbledon

Jack Sock holds and he and Coco Gauff take the first set of this mixed doubles match.

Nice to see Gauff smiling and enjoying herself - as well as playing some highly entertaining tennis - after her earlier defeat to fellow American Amanda Anisimova.

There's a sizeable crowd out here on court three, which is great to see when Nick Kygrios and Stefanos Tsitsipas are going at it on Court One and a certain Rafael Nadal is on Centre Court.

A corker of a backhand slice down the line from Tsitsipas bamboozles Nick Kyrgios and disappears under his racquet. Tsitsipas is taking control of this tie-break fast.

Kyrgios challenges a call at set point but he's wrong to do so and that wraps it up for Tsitsipas.

Harry Poole
BBC Sport at Wimbledon

Some jeers from the Court One crowd as Stefanos Tsitsipas walks away to reset after Nick Kyrgios addresses someone in the crowd. It's heating up on the court, but the Greek fourth seed looks destined to claim this opening set...

An absolutely delightful crosscourt return winner from Rafael Nadal with it skimming the net. Sonego's serve needs to be good today if he's to have any chance and he begins with a service hold to 30.

Only two games in and Sonego has already broken a string on his racquet.

Cliff Richard is in the crowd. Penny for his thoughts on Kyrgios' antics.

The Aussie moves to 4-2 in the tiebreak with a sublime first serve volley off the backhand. Lovely stuff.

Kyrgios completely mistimes his swing as the first point of the tie-break goes Tsitsipas' way, but he's level soon enough.

A first double-fault of the day from Kyrgios comes at a less than ideal moment, a lead that Tsitsipas then extends.

3-1 to the Greek in the tie-break.

Britain's Jamie Murray and his Brazilian partner Bruno Soares produced some brilliant tennis when it mattered to see off Serbia's Nikola Cacic and Italy's Andrea Vavassori in the second round of the men's doubles.

There was only one break point in the first two sets - the one which the ninth seeds converted to take the first set - and things were just as close in the third set, before Soares produced two perfect lobs right at the end, the first to force a third match-point, and the second to convert it.

Jamie's mum was watching on, and her son and Soares left the court to loud chants of "Bruno, Bruno".

We're only a few minutes into this one and Lorenzo Sonego is already having to sprint frantically around the court, desperately trying to keep alive some brutal Nadal forehand and backhands.

It's a Nadal hold to love.

Sonia Oxley
BBC Sport at Wimbledon

The Royal Box guests are quickly dashing back in to take their seats in time to watch Rafael Nadal.

From this end of the court Lorenzo Sonego will face the Spaniard’s serve…and the very bright view of Tom Daley’s suit.

Image source, BBC Sport

Kyrgios can shut up for just about long enough to seal another love-hold, cemented with an ace.

To a tie-break we go.

Harry Poole
BBC Sport at Wimbledon

"What are you doing man?"

Nick Kyrgios wants answers from the umpire following a call and, of course, he's not letting it drop during the change of ends.

He needs to refocus. He's got a big game coming up here...

Chris Peddy
BBC Sport at Wimbledon

Kyle Edmund has had two knee operations in a nightmare spell away from the game but his knee appears to be dealing well with being back on court after such a long time out - so much so that he's even chased down a wide ball and hurdled the side barrier and run off down the stairs almost out of court three altogether.

The crowd are being treated to some great doubles tennis here with Coco Gauff in particular playing some sublime volleys and smashes.

Edmund holds serve and Jack Sock will now serve to win this enthralling first set.