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Summary

  1. Serena Williams wins 6-2 1-6 6-3
  2. Serena will face Roberta Vinci in semi-final
  3. American chasing her first calendar Grand Slam
  4. Use audio icon to listen live (UK only)

Live Reporting

By Jonathan Jurejko

All times stated are UK

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Well that was exciting wasn't it? Now the Williams sisters can go back to enjoying family life without the added pressure of on-court sibling rivalry. Until next time at least.

So Serena advances into the last four with her 33rd successive Grand Slam win. Two more victories and she will complete the first calendar Grand Slam since Steffi Graf in 1988.

Can she do it? Join us later in the week to find out. Night y'all!

S Williams 6-2 1-6 6-3 V Williams

Jeff Tarango

Former professional tennis player on BBC Radio 5 live sports extra

"We're not supposed to talk about the calendar Grand Slam for Serena Williams - but we've got to see the colossal odds on that.

"This was a tough match for Serena, obviously she lost a set, but physically it wasn't because there weren't many long points."

Player reaction

S Williams 6-2 1-6 6-3 V Williams

Top seed Serena Williams on her three-set win over big sister Venus: "It's a really great moment. She is the toughest player I've played in my life and she is the best person I know. I'm going against my best friend and the greatest competitor in women's tennis, in my mind, so it is a tough day.

"When I'm playing her I don't think of her as my sister, when we're in the moment you don't really think about it. We've trained all our lives for these moments and it is a great honour to play in front of everyone here.

"Holding serve in the third set was huge - she came out blasting and I was defending a lot. She has so much power so it was tough."

Piers Newbery

BBC Sport at Flushing Meadows

"If anybody still had doubts over whether Serena Williams could truly have the killer instinct against her sister, the last two points proved it. Dropping to her knees and screaming 'Come on!' at earning match point, and then firing her 12th ace into the corner to seal it, there was no compassion to be found across the net. A semi-final against unseeded Roberta Vinci awaits, and the likes of Petra Kvitova, Simona Halep, Victoria Azarenka in the final could still cause her trouble."

Game, set and match - Serena Williams

S Williams 6-2 1-6 6-3 V Williams

Victory means Serena is now just two matches away from the calendar Grand Slam. But first she must beat unseeded Italian Roberta Vinci in the last four. "She's got nothing to lose but neither have I," she tells Ashe.

Andrea Hlavackova

Former US Open doubles champion on BBC Radio 5 live

"What action. It was a beautiful match with sportsmanship. I liked the last hug from Venus to Serena, telling her she can do it and go on and do this."

Game, set and match - Serena Williams

S Williams 6-2 1-6 6-3 V Williams

The perfect finish! Serena sees off the brutal challenge of her sister with a wonderful ace. The pair embrace at the net to the delight of the Ashe crowd.

*S Williams 6-2 1-6 5-3 V Williams

Venus is continuing to pummel Serena with the short ball down the middle, putting her into a 40-15 lead before wrapping up the hold with a thumping ace down the T. But that could be her last serve of this year's US Open unless she pulls a rabbit out of the hat. Serena serving for the match....

Andrea Hlavackova

Former US Open doubles champion on BBC Radio 5 live

"I have a feeling that was one of the last chances for Venus to get back into the match. Serena knows how important it was to hold and go 5-2."

S Williams 6-2 1-6 5-2 V Williams*

Serena has a pained expression etched across her face throughout this game. None more so than when Venus hooks a wayward forehand almost into the front row of Ashe. Cheer up Serena you're 30-15 ahead. Again she transfers that tension into another huge serve of 122mph - the quickest of the night - to put her 40-30 ahead. Then another hefty serve can only be planted into the net by Venus. Serena is a break away from the match....

Piers Newbery

BBC Sport at Flushing Meadows

"While John McEnroe and Donald Trump have been exchanging 'banter' in the stands - the mind boggles - Serena has been doing what she's done all year, and that is dig deep in final sets. It is the 11th time this year she has been taken to three at the majors and, as everyone knows, she has yet to lose one."

*S Williams 6-2 1-6 4-2 V Williams

A couple of sticky moments for Venus during this sixth game of the deciding set - not least because her forehand is dripping in sweat. But the 23rd seed digs deep at 30-30 to force Serena into a couple of errors, a forehand into the net sealing the game for Venus.

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#bbctennis @usopen Painful to watch the 2 sisters battle it out but am savouring the moment,not sure we'd see this again before they retire!

S Williams 6-2 1-6 4-1 V Williams*

Groans of disbelief from the Ashe crowd as Venus hesitates on a loose Serena forehand to miss the opportunity to move 30-15 ahead on Serena's serve. Instead that gives the impetus to Serena, who lamps a double-handed backhand down the line. And an arcing ace that dips out wide left seals the deal. Now Serena is two games away from a semi-final date with Italy's Roberta Vinci...

Jeff Tarango

Former professional tennis player on BBC Radio 5 live

"Serena is human, she can't stay on it for the whole six games. She has to take a breather."

*S Williams 6-2 1-6 3-1 V Williams

Respite in the deciding set for Venus, who cranks her side of the scoreboard into life. An excellent hold to love is a warning sign to Serena that she isn't ready to roll over.

S Williams 6-2 1-6 3-0 V Williams*

Contrasting emotions from the Williams sisters as Venus earns the chance to instantly break back. Venus looks calm and composed as she stares back across the net. Serena, however, is shouting, screaming and generally losing her cool. But she channels that furious energy into a beast of an ace that slams the door shut on Venus. A blistering backhand and another big serve - stuck into the net by Venus - clinches an important hold.

Serena breaks

*S Williams 6-2 1-6 2-0 V Williams

Advantage Serena. The momentum is fully with the younger Williams sister now, recovering from a Venus ace in the opening point to leave her opponent battered and bruised by some thunderous backhand winners.

S Williams 6-2 1-6 1-0 V Williams*

Serena drops to her haunches, clenching both fists and screaming a scream so loud that it can probably be heard at the hot dog stall outside. That's because she clinches the first game of the deciding set, holding to 15.

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PJ: Men are from Mars, women are from Venus. Serena's on a different planet.

*S Williams 6-2 1-6 0-0 V Williams

Which Williams is this match going to swing in favour of? Let's find out. Serena to serve first...

Andrea Hlavackova

Former US Open doubles champion on BBC Radio 5 live

"If I was not watching it live and the next day I saw the result I'd be thinking they let each other win a set each and then played in the third. But that is definitely not happening. We have no idea who is going to win this."

Game and second set - Venus

S Williams 6-2 1-6 V Williams

A second set point pops up for Venus - but is swiftly batted away by Serena. However, Venus makes it third time lucky to clinch the second set. Would have not predicted a deciding set about 35 minutes ago...

S Williams 6-2 1-5 V Williams*

After some battling defence by Serena, Venus finally forces a set point. Venus continues her attack down the middle - but her first serve is long. Serena attacks her second serve aggressively with the backhand, pushing Venus out wide to the tramlines. Chance gone as Venus cannot control an attempted return down the line.

Venus breaks...again

S Williams 6-2 1-5 V Williams*

Serena is rattled. Is the crowd's support for Venus affecting her? Maybe.

Venus takes the first two points of the sixth game, only to see Serena pull a big serve out of the bag to draw level at 30-30. But Venus continues to batter her sister's defence straight down the middle, and she makes another unforced error. Break point.

A whopper of a forehand return saves Serena's bacon but then... she double faults. Second break point. And this time Venus nabs it as Serena goes wide down the left flank.

Venus serving for the second set...

Piers Newbery

BBC Sport at Flushing Meadows

"When Venus sat at the changeover after the first set, adjusting her headband and letting out a sizeable sigh, the signs were not good for the elder sister. There is normally a constant and lively buzz of chatter around Ashe, but seemingly out of respect for a former champion getting a pasting, the atmosphere was funereal. It's harsh on Serena, but that double fault on break point drew a huge cheer. We are looking at a possible three-setter, and more than an hour's entertainment."

*S Williams 6-2 1-4 V Williams

*Stands and applauds Venus Williams*

The older sibling reminds her sister - the world number one - that she knows a thing or two about winning tennis matches. Venus, the 23rd seed, crashes out an easy hold to love to move closer to taking this match to a deciding set. That's 12 straight points on her own serve for Venus.

Jeff Tarango

Former professional tennis player on BBC Radio 5 live

"I think Serena maybe looked ahead a bit and thought 'I'm playing better than Venus, if I keep going I'll be ok'. And then she double faults."

Venus breaks

S Williams 6-2 1-3 V Williams*

Ooh hello - don't go to bed just yet. Venus has a sniff of a break. She wastes her first chance of the match in fact, prompting a yell of "Come on!" from Serena. I think she's happy. But not for long as Venus tees up another break point with some thumping returns. This time she makes no mistake to raise the volume inside Ashe.

S Williams 6-2 1-2 V Williams

A hint of pressure on Serena's serve as she clunks a forehand into the net for 15-30. But Venus lets her off the hook with a weak forehand on Serena's second serve, then ends a baseline rally with another unforced error. Hang on - Venus isn't finished yet. A perfectly-executed forehand down the line takes the game into deuce...

*S Williams 6-2 1-2 V Williams

Venus continues to maintain her high-quality service game at the start of the second set, powering an ace down the middle to hold to love. The Ashe crowd love that - they're desperate to see this go the distance. Quick gulp of water and a brief sit down at the changeover.

S Williams 6-2 1-1 V Williams*

Impressive serving from Venus is matched by equally impressive serving from Serena. Williams junior does not look like giving up many points on her serve, but when she does - at 30-0 - it is down to a double fault. She recovers with an ace down the T then wraps up the hold.

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CH: So at the family dinner a week on Sunday, Venus has to explain why she got in the way of family history? Serena in two.

*S Williams 6-2 0-1 V Williams

Venus needs something special to start this second set. Better first serves would be a decent point from which to begin. That she manages to do, digging out four first serves and winning four straight points. Venus finishes off her sister with a 115mph serve which Serena manages to stick her racquet on but can only guide into a ballboy's hand.

Andrea Hlavackova

Former US Open doubles champion on BBC Radio 5 live

"It's a flawless performance from Serena so far - I don't think I've ever seen her play a full set with almost no unforced errors."

Jeff Tarango

Former professional tennis player on BBC Radio 5 live

"It's an exhibition in determination. It's been so close but Serena has punched her way through this. Venus does not deserve the 6-2 beating she got"

Game and first set - Serena

S Williams 6-2 V Williams

Dominant stuff from Serena, who smashes down a pair of aces to tee up a triple set point. And she grasps the first opportunity, thundering down another hefty serve which Venus can only slap back into the tape. That's why she is the world number one and holder of all four Grand Slam titles...ruthless.

Serena breaks

*S Williams 5-2 V Williams

Anyone expecting a contest is likely to be disappointed. Especially the thousands packed into Ashe. Venus looks a little perplexed as she leaves a Serena return which she thinks was long at 30-15 - it wasn't. The perfect response is an ace down the middle and that's what she does.

But then Serena has Venus running around the blue acrylic court like a dog chasing a bouncy ball on your local park. An inch-perfect lob gives her another break point in deuce, which she gratefully accepts as Venus cannot find the target with a forehand. Uphill for the older sister now...