Harmony Tan beats Serena Williams 7-5 1-6 7-6 (10-7) in tie-break decider
Rafael Nadal defeats Francisco Cerundolo 6-4 6-3 3-6 6-4
Britain's Liam Broady wins 4-6 6-3 7-5 6-7 (2-7) 6-3 against Lukas Klein
Alastair Gray, Jack Draper and Ryan Peniston through; Dan Evans out and Paul Jubb loses in five sets to Nick Kyrgios
GB's Katie Boulter beats Clara Burel 7-5 6-3; Heather Watson also into round two; Swan, Clarke & Kartal out
Women's number one seed Iga Swiatek beats Jana Fett 6-0 6-3
Burel 3-2 Boulter*
That's more like it!
After a shaky start to the match, Boulter holds serve before breaking Burel after the French player's poorly-timed double fault.
Boulter's right back in this one.
*Williams 4-2 Tan
Johanna Konta
Former British number one on BBC TV at Wimbledon
You have just seen that power from Serena, and Harmony is not able to do much even with variety.
It is only variety if you have something else to put with it. If it is just slice, then it is just that.
*Williams 4-2 Tan
Make that four games in a row for Serena Williams.
This has been much better after that rusty start.
Williams 3-2 Tan*
Smash from Serena to set up a break point...
Williams 3-2 Tan*
Just wide goes Williams over the tramlines but an absolute belter of a backhand sends us to deuce.
Williams 3-2 Tan*
Serena is moving very nicely, a dart forward to the net allowing her to take the ball out of the air and send a backhand winner over for the first point on the Tan serve.
Tan gets a serve and volley wrong, handing Williams an opening at 15-30, but a messy backhand slice from the American puts things on level terms.
Williams 3-2 Tan*
Serena is having a chat with the umpire and pointing to the roof.
"It's really overcast," she says, and the umpire is agreeing. She's on the phone to whoever is in charge of roof management.
Burel 3-0 Boulter*
Britain's Katie Boulter is aiming to advance past the second round for the first time at Wimbledon having fallen at that stage in 2018 and 2021.
But the 25-year-old is up against it early on against France's Clara Burel, who has already broken serve to take command of the opening set.
Boulter responds to grab her first break point of the match in the third game, but Burel wins the next three points and puts clear daylight between herself and the home favourite.
Williams 3-2 Tan*
Sonia Oxley
BBC Sport at Wimbledon
The umpire has just reminded everyone: "I know it’s very exciting but as a courtesy to both players please be quiet during the rallies."
She's right, obviously, but there was some seriously vintage Williams going on here.....!
Evans 1-6 4-6 2-1 Kubler*
Harry Poole
BBC Sport at Wimbledon
Narrator: It was not his moment.
Jason Kubler holds from 30-30, but Dan Evans wastes no time in recording a comfortable hold to maintain pressure.
Williams 3-2 Tan*
Lovely.
Down the T goes Serena Williams with an ace for 40-0, and Harmony Tan puts a forehand into the net to hand the American a hold.
*Williams 2-2 Tan
Johanna Konta
Former British number one on BBC TV at Wimbledon
Harmony Tan may be feeling the presence of Serena well inside the baseline for the second serve - and you know that is coming back with interest.
It is literally theatre - and I love it.
*Williams 2-2 Tan
Sonia Oxley
BBC Sport at Wimbledon
It's fair to say Centre Court is still not packed for this match - it seems like a lot of people nipped out after Nadal finished thinking they had half an hour between the matches but this match started almost immediately.
*Williams 2-2 Tan
Oh dear!
Harmony Tan makes all the right moves, pushing Serena Williams off court, and then sends her forehand way long.
Back on serve!
Williams 1-2 Tan*
A great bit of cat and mouse, drop shots and lobs all over the show, and it's Williams who drops to one knee at the net, fist clenched in celebration, as she smashes her way to another break back point.
Evans 1-6 4-6 1-0 Kubler*
Harry Poole
BBC Sport at Wimbledon
“Evo, Evo, Evo.”
Dan Evans has a word with himself after missing an approach shot, but dusts himself down to hold at the start of a must-win third set.
He reminds himself and his team that he’s not managed to break Jason Kubler’s serve yet after an hour and a half of play - but he makes the perfect start with a sumptuous lob from the back of the court.
Is this his moment?
Williams 1-2 Tan*
Harmony Tan gets in front for the first time in this service game.
She'll have to do better on that second serve, though, as Serena Williams latches onto it and the Frenchwoman nets.
Nine minutes and counting.
Williams 1-2 Tan*
Sonia Oxley
BBC Sport at Wimbledon
Oh wow. Those two huge roars from Williams on her way to setting up the break point are exactly why she is back here after a year out, her desire to win is as strong as ever.
Williams 1-2 Tan*
That is an excellent serve out wide from Tan.
Deuce.
Williams 1-2 Tan*
Harmony Tan picks a bad time to double fault.
Another break point to Serena Williams.