Britain's Johanna Konta, Dan Evans, Jay Clarke, Cameron Norrie & Harriet Dart all win
But James Ward, Paul Jubb & Katie Swan go out on day two
Roger Federer wins in four sets; Rafael Nadal in three
Serena Williams beats Giulia Gatto-Monticone 6-2 7-5
Kerber and top seed Barty advance but Sharapova retires injured
Kyrgios entertains in five sets but Tomic loses in under an hour
Clarke 6-4 5-7 6-4 4-3 Rubin*
Jay Clarke is set to go where only fellow Britons Heather Watson, Kyle Edmund, Jo Konta, Dan Evans, Cameron Norrie and Harriet Dart have gone before - round two of Wimbledon 2019.
He's 2-1 up in sets and a break up against American Noah Rubin on court eight.
Williams 0-0 Gatto-Monticone
A quick fashion watch, and Serena Williams is keeping it pretty low-key with a traditional tennis dress, given a twist with a cut out section on the waist.
Italian qualifier Giulia Gatto-Monticone is accessorising with some heavy strapping on her right knee.
Williams has only ever lost one first-round Grand Slam match. Gatto-Montincone has lost in the first round of her only other Grand Slam match.
This is surely only going one way. Serena to serve.
Image source, Getty Images*Nadal 2-2 Sugita
Snatching Sugita.
An overly-anxious search for a Hollywood winner from world number 274 hands Nadal three break points.
The first is saved.
The Japanese player then whips a flat forehand winner.
And Nadal then goes long.
No!!!!
The third seed challenges the umpire's call and the computer says, "Fair play Rafa".
Sugita then goes long and balance is restored in the tennis world order.
Harris 6-3 1-6 2-6 2-6 Federer
Roger Federer, speaking to BBC TV, said: "Every match has to be played. Just because I've had good results in the past doesn't mean you're going to keep producing it.
"I struggled a bit earlier on, was a bit frozen, and things happened really quickly. He did very well and kept me nervous for a set and a half then I got into the match and things started to change. It took a big effort and I thought Lloyd played a good match.
"Mentally I knew there was still a long way to go for my opponent and experience kicks in. I really had time to figure out and manage the nerves and that took a set but credit to him for swinging big.
"I love this court that's why I'm disappointed I couldn't play that well in the first set."
Image source, Getty ImagesWilliams v Gatto-Monticone
Image source, EPAUp next on Centre Court, it's Andy Murray's new mixed doubles partner... (possibly, maybe?)
Yes, seven-time champion and 11th seed Serena Williams faces Italy's Giulia Gatto-Monticone.
Nadal 1-2 Sugita*
Nadal finally wakes up.
He serves two aces, holds serve, glances towards his team, marches off to his chair and lights a cigar (he didn't actually do that).
Standard.
Another break avoided.
Image source, Getty ImagesJabeur 1-1 *Kvitova
Petra Kvitova - a two-time champion - is getting her 2019 campaign underway against Ons Jabeur, the Tunisian who beat Johanna Konta in Birmingham in the run-up to this year's Championships.
Two bits of interest for you to read up on.
Kvitova talking about her recent arm injury and her love of the All England Club in her BBC column
And the inside story of her recovery from a knife attack that near cost her a finger and her career.
*Nadal 0-2 Sugita
The third saved as Sugita puts a little too much on his forehand.
This stat must have flashed through the Spaniard's mind: Nadal has never lost to a player ranked as low as No. 274 Sugita at the Grand Slams.
*Nadal 0-2 Sugita
One saved.
Two saved.
*Nadal 0-2 Sugita
Sugita wins his 10th consecutive point as Nadal goes wide with a simple backhand from the baseline.
He goes wide again.
Three breaks points for Sugita!!!!
*Clarke 4-6 7-5 6-4 0-1 Rubin
Image source, Getty ImagesBritain's Jay Clarke has the upper hand on American Noah Rubin out on Court Eight.
The 20-year-old has taken the third set. You can watch it over here.
Harris 6-3 1-6 2-6 2-6 Federer
Boris Becker
Three-time Wimbledon champion on BBC TV
You don't want to have too long matches in the first rounds but you want to be tested. Roger started to play really good tennis so a good start for him.
#bbctennis or test 81111 (UK only)
Alex Haworth: Wake up Rafa.
Image source, Reuters*Nadal 0-2 Sugita
That break seems to have buoyed the 30-year-old world number 274 who holds to love.
His serves in that game kicked up into the body of Nadal - impressive stuff.
Harris 6-3 1-6 2-6 2-6 Federer
He lost the first set of the match, but eight-time champion Roger Federer is through into round two.
A well deserved round of applause for Lloyd Harris, who takes a set off Federer.
Eight-time champion Federer through to round two
Nadal 0-1 Sugita*
As first serves go to open up a match, that was different as Nadal falls awkwardly.
He still manages to win the point but then faces break point and goes long with a forehand.
Sugita breaks!!!
Image source, ReutersHarris 6-3 1-6 2-6 2-5 Federer*
Pretty much no-one had heard of Lloyd Harris earlier today and he has showed his class and his determination, but, like many before him, finds Roger Federer far too good.
Still, Harris has a great story to tell his grandchildren in 50 years' time. "Did I ever tell you about the time I won my first ever set at Wimbledon, on Centre Court, against Roger Federer? Yes, granddad. Yes you did."
Harris 6-3 1-6 2-6 2-5 Federer*
This one is cooked. Federer with another break, now serving for the match.
Image source, Reuters*Harris 6-3 1-6 2-6 2-4 Federer
Another game for Federer, another step closer to round two.
Admired bodybuilder Nasser El Sonbaty (from the ATP website).