Serena Williams' Wimbledon singles return ends with 6-3 6-7 (6-8) 6-3 defeat by 20-year-old Australian Maya Joint under Centre Court roof
Stan Wawrinka loses epic match 7-6 (9-7) 6-7 (16-18) 6-7 (7-9) 6-7 (5-7) to Matteo Berrettini in final Wimbledon appearance of his career
GB's Jan Choinski, Katie Swan, Arthur Fery and Jacob Fearnley all through to second round
Toby Samuel loses final-set tie-break as 15th seed Jakub Mensik advances, while Katie Boulter goes out in straight sets
Defending women's champion Iga Swiatek and Elena Rybakina both win three-set matches
French Open champion Alexander Zverev battles through in four sets but fourth seed Ben Shelton suffers shock defeat
Paolini 0-6 6-4 7-5 Montgomery
Out on court 12, Jasmine Paolini has completed her comeback after being bageled in the first set by Robin Montgomery.
The Italian 13th seed forced a decider after taking the second set 6-4 and later recovered from 4-2 down to clinch the third 7-5.
She wasted one match point in the 10th game but made no mistake with her second in the 12th, breaking to love.
Image source, Getty Images
Harry Poole
BBC Sport at Wimbledon
Crowds of spectators have gathered around a few of the smaller outdoor courts as more British players bid to join Katie Swan in the second round of the singles competitions.
I've positioned myself between courts 14 and 15, where on one court Harry Wendelken is trailing Frenchman Valentin Royer by two sets to one, and Jacob Fearnley is a set and a break down to American Alex Michelsen on the other.
The crowd on court 14 chant for Wendelken as he steps back on the court for the start of set four, and the volume level continues to rise as the Briton sets up an early break point - but the game ends in a hold of serve and shouts of ‘allez’ pop up around the arena.
Not so much chanting on Fearnley’s court just yet, but he will need some decent support as he seeks to turn this around.
Dzumhur 6-3 0-0 Fery*
A single break of serve is enough for Damir Dzumhur of Bosnia-Herzegovina, the world number 105, to win the first set against British wildcard Arthur Fery.
Fery was at 15-40 Dzumhur attempted to serve out the set, but those two break points went begging and Dzumhur, having missed chances to wrap up the set in the previous game, gets it done with an unreturned serve out wide.
*Royer 4-6 6-3 6-3 0-0 Wendelken
Dom Inglot
Former British tennis player on BBC TV
I think Royer's confidence is very high and that's why he feels like he can be aggressive.
We saw Wendelken improving his first-serve points won at 86%, that wasn't the issue, it was the second serves where he was starting to have a little difficulty.
How much of that was down to being a little less risky on the second and how much is down to Royer being a lot more aggressive on those returns? I think it's a combination of the two.
Virtanen 6-4 0-0 Shelton*
American fourth seed Ben Shelton will have to come from behind to reach the second round after losing the opening set to Finland's Otto Virtanen.
There wasn't a single break point across the opening eight games but Virtanen seized his opportunity in the ninth, converting his fourth break point, before holding to 15 to take the set 6-4.
Image source, Getty Images*Royer 4-6 6-3 6-3 0-0 Wendelken
Harry Wendelken started the third set in decent fashion, but France's Valentin Royer won four games in a row - including two breaks of serve - to take it 6-3 and move one set away from round two.
Michelsen 6-3 0-0 Fearnley*
Another big ace down the T on set point and Alex Michelsen is a set to the good against Great Britain's Jacob Fearnley.
Royer 4-6 6-3 5-3 Wendelken*
Dom Inglot
Former British tennis player on BBC TV
If Wendelken's coach, Hamid Hejazi, was to tell him anything it would be stay patient as the first step because he really has started to get a little antsy.
Arnaldi 6-3 0-0 Halys*
Italy's Matteo Arnaldi - a semi-finalist at Roland Garros earlier in June - has taken the first set against Quentin Halys.
Arnaldi, the 32nd seed, has never won a main-draw match at Wimbledon, falling in the first round in each of the past three years.
*Dzumhur 4-2 Fery
Like fellow Briton Jacob Fearnley, Arthur Fery has gone a break of serve down in the first set of his match against Damir Dzumhur.
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*Royer 4-6 6-3 4-3 Wendelken
A double fault at the wrong time for Harry Wendelken and he's a break down in the third set.
Image source, Getty ImagesRoyer 4-6 6-3 3-3 Wendelken*
Dom Inglot
Former British tennis player on BBC TV
We mentioned that Royer is more of a clay court player and he likes to play from the back but that was a beautiful volley. He really closed the net down and cut the volley beautifully.
He's reminded us he has more to his game than playing from the back.
Still on serve in the third set in this one, although Valentin Royer has a break point.
*Michelsen 5-2 Fearnley
Jacob Fearnley earns a chance to break Alex Michelsen straight back... but Michelsen saves it with a big ace down the T.
He goes on to hold for a 5-2 lead.
Day 7-6 (7-5) 4-6 0-0 Keys*
Madison Keys has forced a decider on court 18.
The American 26th seed lost a first-set tie-break to compatriot Kayla Day but has just wrapped up the second set 6-4, making the crucial break in the fifth game.
Image source, Getty Images*Michelsen 4-2 Fearnley
Great Britain's Jacob Fearnley, who was in the world's top 50 in June last year but has recently slipped out of the top 100, has been broken in the sixth game of the first set by American Alex Michelsen.
Paolini 0-6 6-4 2-3 Montgomery*
A clench of the fist at the back of the court from Robin Montgomery as Jasmine Paoline plants a shot into the net on break point.
The American qualifier is into a 3-2 lead in the deciding set.
Image source, PA Media*Royer 4-6 6-3 1-2 Wendelken
Harry Wendelken is creating chances in the third set against Valentin Royer.
The British player had a break point in Royer's first service game of the set and is at deuce in the second, while holding his first two service games pretty comfortably.
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So Katie Swan is the first British player through to round two of the singles at Wimbledon this year.
Another Briton, Arthur Fery, is next on court 16 against Damir Dzumhur of Bosnia-Herzegovina.
Jacob Fearnley has just got under way against American Alex Michelsen on court 15, while Harry Wendelken is level early in the third set of his match against France's Valentin Royer.
