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Summary

  1. Stan Wawrinka beats Marin Cilic 6-3 4-6 6-3
  2. Swiss had secured semi-final spot by winning three games
  3. Wawrinka now leads head-to-head 8-2
  4. Two groups of four in round-robin format

Live Reporting

By Aimee Lewis

All times stated are UK

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Wawrinka is still signing autographs and posing for pictures but it's time to end our live text commentary and prepare ourselves for a semi-final bonanza. On Saturday afternoon, world number one Novak Djokovic will play the man who beat him at this year's US Open semi-final, and in the evening session friends will become enemies as Wawrinka takes on Roger Fedeer for one night only (well, for the last time this year at least). Thanks for your tweets and texts. Bye for now.

bbc-coverageBBC coverage

Tomorrow, you can watch coverage of the first semi-final between Novak Djokovic and Kei Nishikori on BBC Two and the BBC Sport website from 14:00 GMT.

BBC Two Scotland viewers will need to press their Red Button just before 15:00 GMT to continue watching the tennis, as BBC Two Scotland switches to coverage of the Scottish National Party's annual conference at that point.

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

A Swiss fan
Getty Images

"I hope Wawrinka gets a fair amount of the support tomorrow, as we know Roger is so well loved. I think it'll be Novak and Roger in the final - but let's hope we get a third-set match at some point."

Wawrinka wipes his sweaty visage before signing a camera lens with a yellow pen. Two group victories to set up an all-Swiss semi-final.

"It was a tough match, it's never easy to play against Marin, he's been having an amazing year," says Wawrinka. "Today it was not easy, trying to be aggressive. I was trying to serve and volley. To win it's important for me."

Asked about the prospect of playing his compatriot Federer, Wawrinka says: "I hope I can get a little bit of support because I know people love him here. It's going to be tough for me, but I need to trust myself and go for it."

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

"Obviously a shame to finish with a double fault, but Cilic is getting a warm round of applause. His first two matches were poor, but he picked it up tonight. You can tell that even though Wawrinka had already qualified, it meant a lot to him to win tonight."

Game, set and match

*Wawrinka 6-3 4-6 6-3 Cilic

Stan Wawrinka
Reuters

Oh la la! Is there a more beautiful sight in tennis than a backhand winner from Wawrinka? That shot takes the Swiss to 30-15, and an anxious Cilic goes long on the next point. Two match point Wawrinka. Cilic saves one but double-faults on the next to surrender with a whimper.

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

"Wawrinka took such a long time to establish himself as one of the world's top players, he will cherish every moment on a stage like this."

Wawrinka 6-3 4-6 5-3 Cilic*

Wawrinka isn't in a mood to let his lead slip. The Swiss collects three points, finishing off a love hold with a forehand onto the line. We won't be keeping you for much longer.

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BBC Radio 5 live sports extra's commentators have been asking you to construct your perfect tennis player:

James Alex: Nadal/Del Potro forehand, Wawrinka backhand and the champion mentality of Federer makes the complete tennis supreme. Federer to win a Slam in 2015 and Nishikori/Dimitrov to win a maiden Grand Slam.

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

Marin Cilic
EPA

"Three unforced errors in a row there from Cilic, all three on the backhand side which is his favourite shot, so he'll be sitting there at the end change wondering what's going on."

Wawrinka breaks

*Wawrinka 6-3 4-6 4-3 Cilic

At 15-15, Cilic launches a serve out to the wings, sending Wawrinka lunging at fresh air. The Croat will perhaps regret not finding his serving groove earlier in this tournament. From 30-30 to 40-30 as Wawrinka thumps an impatient forehand beyond the baseline. The third seed is Zen-like on the next point, adding some spin and slice and patiently waiting for Cilic to crumble, which he does. The Croat's backhand malfunctioning, going long to present Wawrinka with a break point - and long once again. "Come on," Wawrinka growls.

Double Swiss

Wawrinka 6-3 4-6 3-3 Cilic*

Swiss fans
Getty Images

Plenty of Swiss fans inside the arena - no doubt looking forward to a Federer-Wawrinka semi-final tomorrow evening. Whoops from the Swiss contingent for their man as he serves and volleys to a 30-0 lead. Cilic nicks one point, but Wawrinka has him on the backfoot on the next, leaving Cilic with little option but to attempt a lob, which bounces long this time. Wawrinka restores parity, holding to 15.

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

"I'm really pleased Cilic has managed to turn this around. This hasn't been a great tournament for him but no matter what happens now, he'll be finishing on a high and showing what he's capable of."

*Wawrinka 6-3 4-6 2-3 Cilic

Cilic playing with freedom and that means sometimes he finds the line, and sometimes he doesn't. In this game, though, the Croat's forehand is on fire, helping him to a speedy love hold. An enjoyable contest.

Wawrinka 6-3 4-6 2-2 Cilic*

Federer was probably reading bedtime stories at the beginning of this match, but if he's tuned in for the third set he won't be overly worried by what he is seeing. Wawrinka blowing hot and cold, as is Cilic. An ugly overhead from Croat when the court was at his mercy - but a few points later he drags Wawrinka to deuce thanks to a lob which drops perfectly on the baseline. Deuce. Advantage. Deuce. Advantage. Wawrinka directing a lethal ace out wide. Cilic had no chance.

Wawrinka breaks

*Wawrinka 6-3 4-6 1-2 Cilic

Stan Wawrinka
Reuters

Cilic swinging freely and without fear, while his opponent is thinking about ifs, buts and maybes. But, just as we are about to talk about another comfortable hold, Cilic produces a series of unforced errors - a double fault forcing the match to deuce. The Croat fails to negotiate the barrier and Wawrinka has break point. A disappointing end for Cilic as he shoots an adrenalized forehand into the tramlines. Wawrinka celebrates with a stentorian roar.

Get involved via #bbctennis

BBC Radio 5 live sports extra's commentators have been asking you to construct your perfect tennis player:

Muhammad Tayyab: Sampras's serve, Federer's artistry, Nadal's relentlessness, Murray's retrieving skills and Djokovic's flexibility. Federer with Djokovic's backhand would sweep aside every tennis player including Nadal.

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We've also been asking who you can see breaking into the top level of world tennis in 2015:

Chris Martins: Dusan Lajovic could be another good Serbian player to come through the ranks after some impressive performances!

Cilic

Wawrinka 6-3 4-6 0-2 Cilic*

Wawrinka balloons a forehand beyond the baseline and shakes his head before looking towards his camp. The Swiss seeing red mist and a double fault doesn't improve his mood. Two break points Cilic. A nervy baseline slug-fest ensues, nervous aahs from the spectators as the ball tickles the net chord but the rally carries on... before Wawrinka produces a sublime backhand to bring the rally to a brilliant end. But on the next point, the Swiss messes it up, goes for the winner and gets it all wrong. Cilic breaks

*Wawrinka 6-3 4-6 0-1 Cilic

The Swiss is through to the semi-finals but will want to find his swing again before meeting Federer tomorrow. Unforced errors gift Wawrinka two break points. Is the Swiss hot or has Cilic gone cold again? A bit of both. The Croat serves his way out of danger and from 15-40 down he wriggles free.

David Law

BBC Radio 5 live sports extra commentator

"There's a lot of money riding on this third set - whoever wins it gets an extra $155,000 [£98,900]. But there's a feeling that these two are putting on a show now, they really want to entertain this crowd."

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

"Wawrinka probably wouldn't have wanted to play a third set this evening, but he's got to regroup as he's going to have to play very, very well against Roger tomorrow evening."

Game and second set

Wawrinka 6-3 4-6 Cilic*

Marin Cilic
Getty Images

Wawrinka has dazzled with the occasional forehand winner, but has not found his rhythm in this set. A dreamy Cilic return sends Wawrinka chasing fresh air, the crowd sense the Croat could be about to pounce at 0-30 - and so he does. Wawrinka going off radar and we're into a third set for just the second time in this tournament.

Get involved via #bbctennis

BBC Radio 5 live sports extra's commentators have been asking you to construct your perfect tennis player:

Tim Oliver: Whichever players forehand/volley/backhand etc you choose, surely the perfect tennis player must need the stamina of John Isner?

*Wawrinka 6-3 4-5 Cilic

Cilic's serve is hotting up. He sends an ace to the wings, nudging to within a point of another hold, and secures the game with a far from convincing overhead. Convincing or not, Cilic is in the fight.

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Dave of Acton: ATP Tour Finals need to stay in London. Nowhere else could pull in such passionate crowds for every session, even dead rubbers!

Wawrinka 6-3 4-4 Cilic*

Wawrinka approaches the net on the first point, varying play nicely, sending Cilic towards the tramlines before seeing him off with a volley towards the opposite direction. The Swiss has his rival pinned on the baseline and looks confident at 30-15. Cilic forced to swing in hope and the gamble doesn't pay off and Wawrinka sends another sizzling ace down the 'T' to finish off the game.

*Wawrinka 6-3 3-4 Cilic

Cat-like reflexes from Wawrinka as he powers a crosscourt return into the corner - Cilic wouldn't have caught that had he started chasing it on Monday, but it's the only chance the Croat, adding another ace to the stats, gives the Australian Open as the server dominates once more.

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

Stan Wawrinka
Getty Images

"We're seeing why Wawrinka had that tournament success in the first part of the year. He's got so many tools in his game, he has variety and we've seen him skilful and confident around the net."

Wawrinka 6-3 3-3 Cilic*

Oohs from the crowd as Wawrinka pings a 92mph forehand beyond Cilic, but Cilic works Wawrinka this way and that on the next point, before the Swiss goes long, way long, too long. An ace from Wawrinka, his third of the match, followed by another brings the game to a rapid conclusion.

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

"The way the crowds seem to enjoy having the Tour Finals here - sometimes it's about not changing a winning formula."

Russell Fuller adds: "I've heard Abu Dhabi is putting in a big bid to stage the finals, but I'm not sure it would be able to replicate the atmosphere we have in London. They'll make a final decision in March or April, but want to sign a deal somewhere for five years."

Get involved via #bbctennis

BBC Radio 5 live sports extra's commentators have been asking you to construct your perfect tennis player:

FreeTiberio: Forehand Rafael Nadal; backhand Stan Wawrinka; serve, slice & net play Roger Federer; return & mobility Novak Djokovic.

Nuren Ahmed: Serve: Pete Sampras. Forehand: Nadal. Backhand: Wawrinka. Return: Agassi/Djokovic. Net play: Stepanek. Movement: Federer.

*Wawrinka 6-3 2-3 Cilic

Big hitting from the big Croat. Wawrinka attempts to intimidate his rival by sprinting towards the tape, but Cilic simply passes him at the net, wrapping up another trouble-free hold to 15. We're not going to three sets, are we? Surely not?

Wawrinka 6-3 2-2 Cilic*

Scary Spice and husband Stephen Belafonte
Getty Images

The camera goes in search of celebrities and finds Scary Spice and Ronnie O'Sullivan (sitting separately). Whoops and whistles from the spectators as Wawrinka outfoxes Cilic with a feather-soft touch at the net which brings up 40-0 on the scoreboard. And the Swiss wraps up the hold with a crisp ace down the middle. A hold to 15. Both players prepared to go toe-to-toe in the early stages of this set.

*Wawrinka 6-3 1-2 Cilic

Marin Cilic
Getty Images

Cilic wipes away the sweat from his brow as he returns to his chair for the changeover, but he exerted little energy to secure that game, which was one of his more comfortable holds. A hold to 15 and on we go.

Get involved via #bbctennis

BBC Radio 5 live sports extra's commentators have been asking you to construct your perfect tennis player:

Jack Sterne: Serve: Ivo Karlovic. Forehand: Nadal. Backhand: Djokovic. Movement: Murray. Return: Ferrer. Tactical guise: Federer.

Leon Smith

GB Davis Cup captain on BBC Radio 5 live sports extra

"Longer rallies are good on the eye for spectators - slower courts give the opportunity to get the return in. But tennis purists may welcome more variety in the game."

Wawrinka 6-3 1-1 Cilic*

Cilic is out of the tournament but isn't out of the match. He still has a chance in this game, too, as Wawrinka chucks in a double fault to let his opponent level at 30-30. Wawrinka, though, comes out on top of another baseline battle, the Swiss with oodles of time to thread a forehand winner down the line. And it's an ugly end from Cilic, his return turning into a cover drive. It's even stevens in this second set.