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Live Reporting

Mike Henson and Aimee Lewis

All times stated are UK

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  1. Goodnight and farewell

    As Mansour Bahrami and Henri Leconte amuse the Centre Court crowd with their clowning doubles antics, we are heading for home.

    But in the meantime there are still plenty of live tennis matches taking place - go to the live tab and take your pick from our video selection.

    And remember there's Wimbledon 2day starting at 20:00 BST, rounding up all of today's matches.

    The live text will rev back into life tomorrow morning to bring you all the build-up and then coverage of the day's action.

    See you there.

  2. Post update

    Tomorrow then.

    Andy Murray is first on Centre Court against Vasek Pospisil, followed by Novak Djokovic against Marin Cilic.

    Over on Court One, it is Gilles Simon v Roger Federer and then Stan Wawrinka v Richard Gasquet.

    Lovely jubbly.

  3. One of my toughest matches - Anderson

    Kevin Anderson has gathered the strength to tweet after his crushing defeat by Novak Djokovic. 

  4. Nobody puts Drake in the background

    Singer Ciara

    US singer Ciara was at Centre Court today apparently.

    I have no idea who she is.

    But that mirrored aviator sunglasses disguise is a big giveaway that she is someone worth getting a snap with and then googling later.

    When will these celebrities learn?

  5. More injury problems for Raonic

    Milos Raonic missed the French Open after having foot surgery, returned for Wimbledon but is still not fully fit. 

    Raonic, beaten in round three at SW19 by Nick Kyrgios, will miss Canada's Davis Cup tie against Belgium next week.

  6. Post update

    Tennis

    So this is your semi-final line-up. Reckon, you can pick a winner out of that little lot?

    Yeah, so do I. But Williams' generous scheme of giving away sets means there is a punchers' chance for the other three.

  7. Get involved via #bbctennis

    Jonathan Lansana: What a match that was. Azarenka most certainly didn't make it easy but @serenawilliams dug deep to get job done!!

    Kamenchu M'Alaine: Such great tennis by both players. Deserves to be final week game! Such high quality.

    Kuni Poonasamy: Without a doubt Serena Williams is the greatest female athlete ever!!

  8. Post update

    Williams 3-6 6-2 6-3 Azarenka

    Tennis
  9. Williams into last four

    Williams 3-6 6-2 6-3 Azarenka

    Williams and Azarenka

    Serena Williams: "It was really fun out there. I was smiling at one point and I saw Victoria smiling as well. We both really enjoyed it. It's been up and down, up and down but somehow I'm still alive. I'm just happy to be here."

    Asked about her semi-final opponent Maria Sharapova, she says: "It's been a while but she's been playing really well, she's such a fighter. I look forward to it. I don't have anything to lose, I'm just going in there trying to win a match."

    The interviewer mentions the Serena Slam, but Serena wiggles her finger and politely says "no Slam" talk today.

  10. Match summary

    Williams 3-6 6-2 6-3 Azarenka

    Serena vs Azarenka
  11. Post update

    Serena says that it the match against Victoria Azarenka was "tremendous fun" and a "great atmosphere". I don't think she would have said the same after her last two matches against sister Venus or home crowd favourite Heather Watson.

    "Somehow I am still alive, so we will have to see what is next," she concludes.

    Full quotes to come.

  12. Williams into last four

    Williams 3-6 6-2 6-3 Azarenka

    Serena Williams
  13. Williams into last four

    Williams 3-6 6-2 6-3 Azarenka

    Tracy Austin

    Two-time US Open champion on BBC TV

    Serena Williams

    "A huge celebration there from Serena. An incredibly high quality match, everyone was up on their feet at the conclusion of a match that was by far the best of the tournament. It's great to see Victoria back playing at this level as it's been a while. Serena is two matches away from another grand slam."

  14. Game, set and match

    Williams 3-6 6-2 6-3 Azarenka

    Serena Williams

    Serena Williams steams on towards her full house of Grand Slams.

    But the hug for Victoria Azarenka and standing ovation are fully deserved.

    That was a tremendous match and Azarenka brought the best out of Serena.

  15. Break point saved

    *Williams 3-6 6-2 5-3 Azarenka

    Serena Williams nets a simple forehand for 30-40. Break point for Azarenka.

    What does Serena do? She pulls an ace out of the quiver of course.

    Deuce.

  16. Post update

    *Williams 3-6 6-2 5-3 Azarenka

    Two aces follow. The second a 113mph rocket onto the line. Her 16th of the match. 30-30. Two points away...

  17. Post update

    *Williams 3-6 6-2 5-3 Azarenka

    Gutsy from Victoria Azarenka. A forehand winner up onto the baseline following a double fault gives her 0-30 and a lifeline...

  18. Azarenka holds

    *Williams 3-6 6-2 5-3 Azarenka

    Victoria Azarenka keeps herself alive in the match, in the championship with an arcing ace out wide.

    Williams to serve for a place in the last four though next.

    And she has a set of shiny new balls to do it with.

  19. Deuce on Azarenka serve

    Williams 3-6 6-2 5-2 Azarenka*

    Victoria Azarenka is hunched over, fist clenched, teeth gritted with every point she manages to prise from Serena Williams.

    A double fault at 40-15 - as she tries to smuggle the second serve past the American - has her back under the pump though.

    Another missed first serve.

    Serena slugs away a lovely forehand winner down a sliver of court to take us to deuce.

  20. Post update

    Williams 3-6 6-2 5-2 Azarenka*

    Azarenka to serve to stay in the match...

  21. Post update

    Williams 3-6 6-2 5-2 Azarenka*

    Never mind Azarenka, give me a chance Serena.

    Three aces on a row, with barely a bounce of the ball separating them take her flying to 40-0.

    Azarenka managed to claw a return back on the fourth point of the game, but that is the only chance to feel fuzz on string for her.

    Serena hammers away from midcourt for a hold to love that weighs in at a puny one minute 15 seconds.

  22. Post update

    *Williams 3-6 6-2 4-2 Azarenka

    Azarenka

    Serena Williams is still hunting Victoria Azarenka's runt of second serve, but she has come out of that game empty-handed.

    Azarenka has kept hitting out in the rallies, kept Williams moving and kept her side of the scoreboard ticking.

  23. Get involved via #bbctennis

    Rob Stileman: "Serena Williams is without doubt the greatest female athlete of my lifetime."

  24. Post update

    Williams 3-6 6-2 4-1 Azarenka*

    Serena Williams

    Serena Williams have been rummaging and clunking around the gearbox. There have been a few stalls and back-fires.

    But now she has slipped into top transmission slot.

    Her game is roaring on all cylinders, whisking that service game from beneath Azarenka to love in just over a minute.

  25. Azarenka holds

    *Williams 3-6 6-2 3-1 Azarenka

    This match needed that.

    Victoria Azarenka hangs on to her serve to stay within a break's reach of Williams.

    The Belarussian grips her fist and lets rip with a squeal of delight and determination.

  26. Break point saved by Azarenka

    Williams 3-6 6-2 3-0 Azarenka*

    This is Serena in cartoon superhero mode.

    Zap! The top seed boshes away a backhand down the line. Blammo! A forehand zips away for a winner with Azarenka dragging her feet behind.

    30-40 and break point. Saved as Azarenka finds some of that muscle to plonk down a rocket serve.

    Not out of the woods yet. Into deuce indeed.

  27. Post update

    Williams 3-6 6-2 3-0 Azarenka*

    Jana Novotna

    Former Wimbledon champion on BBC Radio 5 live

    "You get a sense by seeing Azarenka's body language that she is going through the emotions. She looks a touch tired with challenging Serena from back of the court. Something is creeping into her mind."

    "Victoria will have to do something very special to turn the momentum around."

  28. Post update

    Williams 3-6 6-2 3-0 Azarenka*

    Serena Williams has just produced one of the shots of the tournament so far.

    Victoria Azarenka's attempted pass could not have been better - clearing the tape by a pimple and loaded with top-spin - but Serena gets down low and volleys off her bootlaces with a wrist of iron.

    The ball floats over perfectly to leave Azarenka stranded at the back.

    Delicious. Forty-love. The game soon follows. Williams on the charge, the last four on the horizon.

  29. Game, set and match Radwanska

    *Keys 6-7 (3-7) 6-3 3-6 Radwanska

    Radwanska

    Brains overcomes brawn. Keys wild on the forehand - two match points Radwanska. The Pole can't secure victory at the first opportunity, but on her second chance she forces Keys onto her heels and beats her stranded opponent with a straightforward forehand. The 2012 Wimbledon finalist is into the last four.

  30. Post update

    Keys 6-7 (3-7) 6-3 3-5 Radwanska*

    Radwanska with a surgeon's touch around the court - a lob sends Keys scrambling and she follows up with a sweetly-struck dropper which brings up two break points. The young American holds firm, thwacking an ill-judged Radwanska lob. But it's a temporary reprieve for Keys, despite Lindsey Davenport bellowing from the sidelines. Radwanska within a game of the semi-finals.

  31. Williams breaks

    *Williams 3-6 6-2 2-0 Azarenka

    Serena Williams

    Victoria Azarenka is at Serena Williams' mercy whenever she misses with her first serve.

    The underdog gets off the hook as Williams piles into a return at 15-30 and goes wide.

    But it is only a partial reprieve.

    Williams arrows away a forehand winner for 30-40 and then lures Azarenka long to move a break up.

    It will be difficult to rein her in from here.

  32. Post update

    Williams 3-6 6-2 1-0 Azarenka*

    Leon Smith

    GB Davis Cup captain on BBC Radio 5 live

    "So good to watch this match, a privilege to watch. Azarenka was dominating the first set with her serve, perhaps it dipped a bit in the second and Serena get on top of the second serve and dominated play. If Azarenka can lift her serve then she has great chance but Serena looks like she is out to get a win."

  33. Post update

    Williams 3-6 6-2 1-0 Azarenka*

    Venus Williams watches sister Serena on Centre Court

    Happy days for Venus Williams. Her sister Serena has the momentum now, taking the opening game of the third set to 15 with her ninth ace of the match sealing the final point.

    I'm not sure how the older Williams sister would have fared against Victoria Azarenka today.

    The Belarusian - currently 24th in the world - will be back up towards the top five very soon on this evidence.

  34. Post update

    Keys 6-7 (3-7) 6-3 3-4 Radwanska*

    John McEnroe

    Three-time Wimbledon champion on BBC TV

    "No one can accuse Madison Keys of holding back on her shots. We expected a tight one and that's what we're getting."

  35. Post update

    *Keys 6-7 (3-7) 6-3 3-4 Radwanska

    There's no way of knowing which way this match will swing. 30-30 - Keys screws a backhand into the tramlines. The Pole, though, isn't able to inflict that killer blow.

    The pair swish and sway between deuce and advantage before Radwanska produces a super winning forehand, and the game reaches its conclusion when Keys goes long. It's still with serve.

  36. Post update

    Williams 3-6 6-2 Azarenka

    Tracy Austin

    Two-time US Open champion on BBC TV

    "My money has to be with Serena at this point. She has all the momentum. She has now won the last four games in a row."

  37. Post update

    Williams 3-6 6-2 Azarenka

    Jana Novotna

    Former Wimbledon champion on BBC Radio 5 live

    Azarenka

    "You can feel that the momentum is changing in the match. Looking at Azarenka's face you can see that something is missing, she is thinking.

    "We are in for a treat. From the very first point it has been an exciting match, especially after Serena played a subdued match against her sister Venus in the previous round, we now have two players giving their utmost. A treat to be here and enjoying this match."

  38. Game and second set

    Williams 3-6 6-2 Azarenka

    Serena

    Serena Williams is back in the room.

    Victoria Azarenka won only 33% of points on her second serve in that second set. When you are only landing with 60% of your first serves, that leaves you with a lot of ground to make up.

  39. Deuce on Azarenka serve

    Williams 3-6 5-2 Azarenka*

    Victoria Azarenka dribbles a volley wide, sticking her tongue out in exasperation as she looks up at 15-30 on the scoreboard. Two big old first serves take her to the brink, but Williams tucks into a second serve like a seafood platter to take us to deuce.

    Where is the mojo hiding in this match? Anyone's to win at the moment..

  40. Get involved via #bbctennis

    Sakshi Gupta: "Laser guided-depth and angles measured with protractor accuracy from both players. #Azarenka #Williams"

    Robert Stott: "Serena vs Vika is one of my favourite matches I've seen at Wimbledon this year."

  41. Serena holds

    Williams 3-6 5-2 Azarenka*

    Serena Williams

    Serena Williams is off the slab and running.

    Victoria Azarenka strays into the net for 30-40 before her attempted lob is hooked out of the stratosphere by a back-pedalling Williams to take us to deuce.

    Williams completes her escape with a bellow of delight. This match is following the classic Serena template - it takes a whole world of trouble to bring the best out of her.

  42. Break points against Williams

    *Williams 3-6 4-2 Azarenka

    Serena Williams coughs up a double fault to give Victoria Azarenka a leg-up to 15-30.

    Brilliant defence from Azarenka, guessing right like a shoot-out goalkeeper to pat the ball back and force another shot from Williams. Into the net!

    15-40 and two break points.

  43. Post update

    Williams* 3-6 4-2 Azarenka*

    Leon Smith

    GB Davis Cup captain on BBC Radio 5 live

    "It feels like Serena has the grip on the match, believes that if she gets a lead she can go on to win the second set, and take a strong position in the third set."

  44. Williams breaks

    *Williams 3-6 4-2 Azarenka

    Serena Williams

    Laser guided-depth and angles measured with protractor accuracy from both players.

    This really is vintage stuff.

    Break point Williams, Azarenka into the net, the pass attempt is a whisker wide.

    Take two. Another break point for Williams, Azarenka presses forward again and this time she reels in the break as Azarenka fails to get a dipping backhand up off her toes.

  45. Post update

    Williams 3-6 3-2 Azarenka*

    Jana Novotna

    Former Wimbledon champion on BBC Radio 5 live

    "It is so good to see Azarenka being patient and determined even when Serena is pushing her side to side. Earlier, Azarenka would get impatient and make unnecessary unforced errors. Today she has been very solid."

  46. Deuce on Azarenka serve

    Williams 3-6 3-2 Azarenka*

    Opera singer Katherine Jenkins

    Katherine Jenkins' face has been stunned static by the sight of that tartan suit behind her as she takes her seat.

    Serena Williams is far more animated. The top seed points accusingly at the court surface, believing that a dodgy bounce is behind the framed forehand that allows Victoria Azarenka to 40-15.

    Williams is chiselling away though and has worked her way back to deuce... Maybe a chance here.

  47. *Keys 6-7 (3-7) 6-3 0-1 Radwanska

    John McEnroe

    Three-time Wimbledon champion on BBC TV

    "She doesn't have to go for too much. It looks to me that Madison is learning on the job. It's a great sign."

  48. Wednesday's order of play

    Court One - 13:00 BST start

    1 Gilles Simon (Fra) [12] v Roger Federer (Swi) [2]

    2 Stan Wawrinka (Swi) [4] v Richard Gasquet (Fra) [21]

  49. Wednesday's order of play

    Centre Court - 13:00 BST start

    1 Vasek Pospisil (Can) v Andy Murray (GB) [3]

    2 Novak Djokovic (Ser) [1] v Marin Cilic (Cro) [9]

  50. Post update

    A bit of order of play news for you for tomorrow to fill the changeover...

  51. Game and second set

    Keys 6-7 (3-7) 6-3 Radwanska*

    Keys

    At 30-30 the game could swing either way, but Keys cannons a forehand winner into the corner to bring up a set point. Set point? Means nothing. Keys beyond the baseline. Deuce. But she engineers a second break point and ruthlessly wins it with an ace down the T.

  52. Post update

    Williams 3-6 3-2 Azarenka*

    Serena Williams folds in the middle after getting her footwork all wrong on a backhand and duffing a clumsy shot long for 30-40.

    Break point Azarenka. And a second serve to look at. Saved with some old-school serve-volley fun and games.

    Serena makes her way to safety, but her hopes of a full house of Grand Slam titles are in danger.

  53. Keys breaks

    *Keys 6-7 (3-7) 5-3 Radwanska

    Break point Madison Keys and the big-hitting American secures it with a fortunate net cord. She raises her arm, apologising for her good fortune but, undoubtedly, she's glad to have the opportunity to serve out the set.

  54. Post update

    *Williams 3-6 2-2 Azarenka

    Jonathan Jurejko

    BBC Sport at Wimbledon

    While neither Serena Williams nor Victoria Azarenka would trouble the ear-splitting shrieking of Maria Sharapova on the decibel meter, this pair are certainly creating plenty of noise on Centre Court.

    Azarenka's wailing 'hhherrrrs' are being met by Williams' lower-pitched 'ah-haaas', which almost sound like the American is guffawing during these long rallies.

    And that makes many in the Centre Court laugh during some points, prompting the umpire to remind fans that they should remain silent. Ssssh!

  55. Azarenka holds

    *Williams 3-6 2-2 Azarenka

    A gritty hold, but there were warning signs for Azarenka.

    Her serve is being put through the mincer every time by Serena Williams.

    One crunching return from Williams knocks her back from advantage, before the American again tries to swat a clean winner, but is just millimetres wide.

  56. *Keys 6-7 (3-7) 3-3 Radwanska

    John McEnroe

    Three-time Wimbledon champion on BBC TV

    "If she can get her level up, Keys can still get the job done."

  57. Post update

    *Keys 6-7 (3-7) 3-3 Radwanska

    A Polish fan watches Agnieszka Radwanska against Madison Keys

    Radwanska has one particularly enthusiastic supporter on Court One. The Pole peppering the court with delicate shots - drops shot, lob. They don't always work, but it's pleasant to watch. Both players holding serve comfortably but won't do so forever.

  58. Two break points saved by Azarenka

    Williams 3-6 2-1 Azarenka*

    Serena Williams

    Serena Williams forces a break point for the first time since the opening game of the match.

    Victoria Azarenka is stretched thin across the back of the court as she is forced into shuttling defence. She fully earns her passage back to deuce as Serena pumps long.

    A second serve gets the full treatment next though, thumped away for a second break point.

    More tremendous rearguard hitting from deep from Azarenka hustles Williams out of it again.

    Azarenka is clinging on. Just.

  59. Deuce on Azarenka serve

    Williams 3-6 2-1 Azarenka*

    The quality of this tennis is final-weekend stuff not the start of the second week.

    Former world number one Victoria Azarenka beats current top dog Serena Williams with a backhand full of placement and precision.

    Serena Williams comes to the net to gleefully swat away a running volley for 15-30. Victoria Azarenka with a sublime drop volley onto the tramline for 40-30 and then lifts a forehand just wide with Williams out of court to take us to deuce.

    Cracking stuff, a pleasure to watch.

  60. Post update

    Williams 3-6 2-1 Azarenka*

    Williams

    Victoria Azarenka climbs into a mid-court bounce, flinging the kitchen sink, the white goods and the rubber gloves, into a forehand winner for 30-30.

    That seems to awake Serena Williams from her slumber though. A delicious stretching cross-court backhand from out wide lands for a winner and is greeted by a scream of delight.

    This is brewing up into something special. Hold on to your sweatbands.

  61. Post update

    *Williams 3-6 1-1 Azarenka

    Jana Novotna

    Former Wimbledon champion on BBC Radio 5 live

    "Serena is starting to be more vocal. That's always a good sign, to get it all out, to bring positivity back into her game.

    "Serena knows it is crucial to put pressure on Azarenka's second serve but Azarenka is doing a great job of mixing up her serves."

  62. Post update

    *Williams 3-6 1-1 Azarenka

    Azarenka

    Victoria Azarenka's serve is a right old pick-and-mix.

    Her fourth double fault of the match is followed by her fourth ace for 40-15. But when the rallies break out, she is more than holding her own.

    She is not quite bullying Serena off court, but the top seed has not caught fire just yet and seems a little disconcerted by the power that Azarenka is generating off the deck.

  63. Get involved via #bbctennis

    Rob Wilson: "Where does Azarenka get her whistling tennis balls from? Are they standard #Wimbledon2015 issue?"

    Junaid: "Azarenka on fire!"

  64. Post update

    Williams 3-6 1-0 Azarenka*

    Serena Williams

    Losing a set on her way to victory is just what Williams does in Grand Slams this summer. You can't write her off yet.

    But if she does fail to make the last four, then the semi-finals will be filled by seeds 23, 4 and either 21 or 13. Pretty open.

    Let's not get into those games just yet though. Williams opens up the second with a hold to love that contained three aces and was bristling with intent.

  65. Game and first set Radwanska

    Keys 6-7 (3-7) Radwanska

    The first set has just been won on Court One too.

    Madison Keys is soon back in trouble in the tie-break, trailing 2-6, and this time her forehand is largely to blame. Radwanska sees another set-point come and go before Keys plays another sloppy forehand, giving the advantage to the 2012 runner-up from Krakow.

  66. Game and first set

    *Williams 3-6 Azarenka

    Azarenka

    A twitchy tentative double fault from Victoria Azarenka puts her in a bit of bother at 30-30, but she does tremendously to shift Williams off balance with a naughty backhand angle for 40-30.

    Williams coming up short of a length, Azarenka advancing, and away goes the forehand winner, slid down the line for a winner and the first set.

  67. Post update

    Tracy Austin

    Two-time US Open champion on BBC TV

    "I think it (the debate over shrieking in the women's game) might be done as I'm not sure there is much they can do about it. It all began with Monica Seles and there was a lot made of it. Sharapova and, in particular, Azarenka, have said they are not going to change."

  68. Post update

    Williams 3-5 Azarenka*

    Williams saves the first set point with a ram-jammer of a serve and then bruises her way through the next, tip-toeing around the very edge of the lines, to move to deuce.

    Azarenka can't get the job done on the Williams serve. But that would have been a bonus.

    Now, she has the chance to nail it tight shut on her own serve.

  69. Tie-break

    Keys 6-6 Radwanska

    Madison Keys saves three set points on her own serve against 2012 finalist Aga Radwanska.

    We're into a tie-break on Court One.

  70. Post update

    * Williams 3-5 Azarenka

    Jana Novotna

    Former Wimbledon champion on BBC Radio 5 live

    "It has to be really hard (for Azarenka to lose close matches against Serena). Every time I played Steffi Graf I was getting closer yet at the end she came out the winner. That's what happens when you play the best players. You cannot ever count Serena out of the match. She has an amazing ability to make a comeback whenever she sees an opening."

  71. Post update

    *Williams 3-5 Azarenka

    A massive twang of the net cord wire and the ball squirms over to Williams side to give Azarenka 15-15.

    Double fault Williams, 15-30. Williams wrong-footed, two set points Azarenka...

  72. Get involved via #bbctennis

    Andrew Neill: "Hopefully Azarenka watched Heather Watson's narrow defeat to Serena and so knows how to vex the world no. 1."

    RDX: "Great start for Azarenka. Serena definitely not at her best again."

  73. Post update

    *Williams 2-5 Azarenka

    Azarenka

    Victoria Azarenka is showing no signs of giving away this lead.

    The Belarusian is as tenacious as a terrier, chasing around her groundstroke to bring her lights-out forehand power into play and cracking down blockbuster serves.

    Williams to serve to stay in the set next.

  74. Post update

    Williams 2-4 Azarenka*

    Tracy Austin

    Two-time US Open champion on BBC TV

    "Serena is definitely aware of Azarenka and where she stands because she is known for having one of the earliest hit points in the women's game. She has great hand-eye co-ordination."

  75. Post update

    Williams 2-4 Azarenka*

    Victoria Azarenka hammers a clean-as-a-whistle return winner, but for the most part Serena Williams' serve is out of reach and out of sight.

  76. Post update

    *Williams 1-4 Azarenka

    Leon Smith

    GB Davis Cup captain on BBC Radio 5 live

    "The power of the ground strokes is exceptional as is the big serves. The second serve speed is also high. This match is about Serena, she is the favourite. She is hitting the ball so well but I am also impressed with how Azarenka has matched Serena's power. Not many can.

    "The confidence with which Azarenka is playing is very encouraging. Not getting overwhelmed and really going after the ball."

  77. Post update

    *Williams 1-4 Azarenka

    Jana Novotna

    Former Wimbledon champion on BBC Radio 5 live

    "Both players are looking very business-like, especially Serena. She is looking very serious, hitting the ball cleanly. Azarenka is also an experienced player, moving well on court and very solid. Today's match is all about how well Serena can hit and serve. To me she looks very serious."

  78. Post update

    *Williams 1-4 Azarenka

    Singer Drake, right, watches Serena Williams against Victoria Azarenka

    Remember early-nineties fast-rapping Canadian Snow?

    Probably not. I wouldn't blame you for erasing all traces from the memory banks.

    Anyway his 21st century equivalent Drake is here, hugging it out with Venus Williams before taking his seat.

    No immediate break-back joy for Camp Williams. Azarenka still impressing as she moves further ahead on the scoreboard with a hold to 15, crowned with an ace.

  79. Get involved via #bbctennis

    Ben Hill Flood: "Match prediction between Radwanska and Keys: I have a feeling Madison Keys may cause an upset in this match 2-1 Keys I am saying."

    Neil Wallington: "Can't speak for everyone, but Garbine Muguruza has won a fan here this Wimbledon. Great shots and a never-say-die attitude."

  80. Post update

    Keys 4-4 Radwanska*

    Madison Keys

    Madison Keys saves two break points to stay on terms with 2012 finalist Aga Radwanska.

    Power versus craft on Court One and there is not much in it so far.

  81. Azarenka breaks

    Williams 1-3 Azarenka*

    Azarenka

    Victoria Azarenka makes the first dent in Serena Williams serve, forcing her into a backhand error as he injects an overdose of pace into the rally on the second of two break points.

  82. Break points Azarenka

    Victoria Azarenka holds her backhand stroke at the top of the backswing like a kind of threat, before hammering Serena Williams back behind the baseline for 15-30.

    A whippy forehand down the line for 15-40 and two break points Azarenka,

  83. Get involved #bbctennis

    Dennis Ethan: Just proud of CoCo Vandeweghe despite the defeat. Such a FIGHTER!

    David Ramage: Sharapova would win more fans if she would turn down the volume.

  84. Post update

    *Williams 1-2 Azarenka

    Serena

    Both players are absolutely clubbing the ball from the back of the court. Fred Flintsone-style tennis with great, big bruising groundstrokes.

    It is engrossing stuff. Serena Williams smacks a fizzing forehand return winner to apply a bit of pressure at 40-30.

    In comes Victoria Azarenka on the next point, putting a volley beyond the reasonable reach of Serena Williams.

    Victoria Azarenka

  85. Post update

    Keys 3-3 Radwanska*

    John McEnroe

    Three-time Wimbledon champion on BBC TV

    Radwanska

    "Radwanska's touch and craft really help her on this surface. She doesn't get blown off the court like she would on clay or a hard court."

  86. Post update

    Williams 1-1 Azarenka*

    Tracy Austin

    Two-time US Open champion on BBC TV

    "These are really good early signs from Azarenka that she is hitting the ball cleanly."

  87. Post update

    Williams 1-1 Azarenka*

    Nee-Yaawo!

    A Serena Williams service game screeches past in the time it takes to grab a crisp, look down at a keyboard and back up again.

    The spotlight swings back on Azarenka's serve.

  88. Post update

    *Williams 0-1 Azarenka

    Victoria Azarenka grips her fist and shoots a look up to coach Wim Fissette in the stands as Serena Williams flops long.

    Azarenka's hitting partner by the way, Sascha Bajin, was a long-time member of Camp Williams before making the switch in March.

  89. Post update

    Williams 0-0 Azarenka*

    Nothing shy or retiring about that opening rally.

    Both players thumping the ball like a punchbag from the baseline.

    Williams loads up on a return on the next point, but her forehand sprays wide. 30-0.

    Un-oh. Azarenka service action is suddenly spluttering and smoking. Two double faults offer up a break point at 30-40. Saved with a big serve out wide. It took some grit to dig that serve out of the locker.

    To deuce.

  90. Post update

    Williams v Azarenka

    Victoria Azarenka to tee us off.

    Maria Sharapova is awaiting the winner of this one...

  91. Post update

    Williams v Azarenka

    So let's see what the history book has to tell us.

    Well, it is a Steven King-style nightmare-generator for Victoria Azarenka.

    She has lost 16 of her 19 meetings with Williams including the last four and their two at Wimbledon.

    The silver lining for Azarenka? The Belarusian has three match points in her meeting with Serena Williams at Madrid earlier this year, but could not see it out.

  92. Post update

    Williams v Azarenka

    Centre Court has pretty much cleared out. Time to empty bladders and recharge glasses.

    It means that five-time champion Serena Williams and Victoria Azarenka - chunky earphones clamped over her lugholes - emerge to little more than a ripple of applause.

    Williams coach Patrick Mouratoglou and her surprisingly-hard-to-spell hitting partner Robbye Poole are in place in her box, long with mother Oracene.

  93. Muguruza into semi-finals

    Muguruza 7-5 6-3 Bacsinszky