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Summary

  1. Djokovic beats Nishikori 6-1 3-6 6-0
  2. Live on BBC Two and 5 live sports extra - click on live coverage tab
  3. Roger Federer v Stan Wawrinka at 20:00 GMT
  4. Winners meet in Sunday's final at 18:00 GMT, live on BBC Two & website
  5. Relive action via Live Coverage tab

Live Reporting

By Michael Emons

All times stated are UK

Get involved

So that is everything from the first semi-final. We will be back at 20:00 GMT, for the second semi-final between Roger Federer and Stan Wawrinka. We will see you then. Bye for now.

Andrew Castle

BBC tennis commentator on BBC Two

Kei Nishikori
Reuters

Nishikori will end the year as world number five, having started it as number 17, aided by that appearance in the US Open final. It's been a sensational year for him.

Some words from our winner Novak Djokovic: "Kei was playing great and this has been the best season of his life but he made some crucial double faults in the third set.

"Of course I will watch the semi-final [between Roger Federer and Stan Wawrinka]. I'll get some popcorn and enjoy it from my bed."

Djokovic 6-1 3-6 6-0 Nishikori

Novak Djokovic may be a bit more tired than he would like. He tries to sign the television camera with a bright yellow pen, but instead just leaves a dot on the screen, before he gives up.

But, he has certainly made his mark on the tournament.

He will face the winner of the second semi-final between Roger Federer and Stan Wawrinka on Sunday.

Andrew Castle

BBC tennis commentator on BBC Two

"What a sad way for it to end but it's Djokovic who secures his place in the final where he will try to make it three in a row."

Game, set and match

Djokovic 6-1 3-6 6-0 Nishikori

He needs something special now, does Nishikori. But he loses the opening two points off his own serve. A cross-court winner after a Djokovic volley brings a smile to his face to make it 30-30, but an even better cross-court forehand from Djokovic gives the Serbian his first match point.

It is all over. A double fault. ends it.

Novak Djokovic
AFP

Tim Henman

Former British number one on BBC Two

"It will be a big disappointment if Nishikori's last set of the year is a bagel. I'd like to see him hold serve here."

Djokovic 6-1 3-6 5-0 Nishikori*

Kei Nishikori
AFP

The head is down, the shoulders are slumped. There looks no way back for Nishikori. He is galloping around frantically, but it is not enough. The class of Djokovic has proved decisive. He needs one more game. Nishikori serving to stay in the match.

Tim Henman

Former British number one on BBC Two

"He battled so well in the second set to stay in it but here he is 15 minutes later and 4-0 and two breaks down in the decider."

Break of serve - Djokovic

*Djokoivc 6-1 3-6 4-0 Nishikori

Nishikori certainly has not given up, but is struggling for consistency. A double fault, his second of the set, puts him under more pressure, although he responds with an ace. His next point? Another double fault.

Those two mistakes help Djokovic move to break point, which he takes full advantage of. Nishikori throws his racquet to the floor in frustration. The racquet has gone. The match may soon be gone as well.

Djokovic 6-1 3-6 3-0 Nishikori*

Good sportsmanship from Djokovic in the third game. A spectacular backhand cross-court winner from Nishikori is applauded by Djokovic. He was unimpressed with the crowd cheering on his opponent earlier in the match, but that was nice to see.

But that backhand winner can not lead to a break. Djokovic is back on top and looks just too good. He is now 3-0 ahead. Surely a place in the final is going to be his now?

Andrew Castle

BBC tennis commentator on BBC Two

"Djokovic's indoor streak stands at 30. Ivan Lendl once won 37 on the trot, while John McEnroe holds the record at 59."

Break of serve - Djokovic

*Djokovic 6-1 3-6 2-0 Nishikori

Kei Nishikori
AFP

Break point for Djokovic now after Nishikori gives it too much welly and sees a forehand go long. Another one is overhit, which could give Djokovic the break.

It is challenged by the Japanese, but the umpire's call was correct. The ball was out. Djokovic back in charge.

Piers Newbery

BBC Sport at the O2 Arena in London

"Finally this week, some real, big match drama. Djokovic barely made a winner after being annoyed by the crowd and he might well have been even more upset had Nishikori taken one of those two break points at the start of the decider.

"The Japanese player is, somewhat surprisingly, statistically the most successful player in the open era in deciding sets, and leads the ATP this year with a 21-2 record. A real test for the world number one who has won 14 of 16."

Tim Henman

Former British number one on BBC Two

"It was a great opportunity for Nishikori in that first service game. But now the momentum changes."

Djokovic 6-1 3-6 1-0 Nishikori*

The first set only took 23 minutes and it looked routine for the world number one, but Djokovic is having to battle hard for every point.

Nishikori, off Djokovic's serve, takes the opening two points, but is then furious with himself when he drags an angled forehand out.

However, an off-balance Djokovic then throws one well off target and Nishikori has two break points. The first ends disappointingly for him, with the ball in the net. The second one follows suit, and we're back at deuce.

Djokovic does the rest. The final point sees Nishikori diving the wrong way, like a baffled goalkeeper who has been given the eyes by a skilful penalty taker.

Djokovic 6-1 3-6 Nishikori

Some stats for you from the second set...

Set time: 37 minutes

Winners: Nishikori 10, Djokovic 3

Unforced errors: Nishikori 5, Djokovic 8.

The world number one has lost a set for the first time this week. How will he respond?

Tim Henman

Former British number one on BBC Two

"Djokovic's concentration levels dropped off after he was broken for the first time. It's going to be important mentally how both players come out at the start of the second set. I'm expecting a big reaction from Djokovic."

Second set - Nishikori

Djokoivc 6-1 3-6 Nishikori

It is a great time to produce your first ace of the match. Nishikori then has two set points. He only needs one of them. Djokovic's return goes wide to the left of the court and Nishikori takes the set. This match looked all over half an hour ago. Now it is one set each.

Tim Henman

Former British number one on BBC Two

"He's been crushing his forehand well and suddenly from a set and a break down, Nishikori is serving for the second set."

Break of serve - Nishikori

Djokovic 6-1 3-5 Nishikori*

Aggressive play from Nishikori in the eighth game of the second set. He may be hampered by the strapping on his wrist, but still has enough skill to send Djokovic scuttling across to try and retrieve an angled forehand in the corner.

We mentioned earlier that Djokovic regarded Nishikori as one of the best baseline players in the game, and he shows why with another blaster that has Djokovic on the back foot.

The return is weak and the Japanese player dances forward to slap it away for a spectacular winner. That gives him break point. He then shows his range of shots, with a drop shot bringing Djokoivc to the net, a lob sending him back to create the opportunity for the forehand winner that sees him serving for the second set.

*Djokovic 6-1 3-4 Nishikori

Congratulations, Kei.

You have just become the first man this week to win four games in a set against Novak Djokovic. Nishikori's coach Michael Chang nods and applauds approvingly. The world number five (Nishikori, not Chang) is hanging in there.

He restores his lead at 4-3 in the second set. However, if his task is not tough enough against a great of the game, Nishikori has to have some treatment on a wrist injury, which needs strapping up by a physio. How will that affect his performance?

Tim Henman

Former British number one on BBC Two

"You've got to be prepared to force yourself through the pain barrier [when you're playing against someone like Djokovic]. You have to stick in there. Endurance is going to be built up on the practice courts."

Djokovic 6-1 3-3 Nishikori*

Nishikori broke Djokovic's serve in the last game served by the Serbian. At 30-30 he has a chance to do it again, but is unsuccessful. We are level again.

*Djokovic 6-1 2-3 Nishikori

Fans in Scotland that are watching on BBC Two need to press the Red Button now. Unless you want to watch the SNP Conference, of course.

*Djokovic 6-2 2-3 Nishikori

Kei Nishikori
AFP

Nishikori shows what he is made of as he holds onto his serve to edge back in front in the second set.

Djokovic 6-1 2-2 Nishikori*

Piers Newbery

BBC Sport at the O2 Arena in London

"There is no denying that was a pretty massive cheer after Djokovic double-faulted to lose serve, so much so that I'm not sure everyone in the arena would have noticed his reaction.

"He hardly needs the support but Djokovic has been disappointed in the past by the level of backing he gets in some of the big matches against the likes of Federer or Nadal.

"It's not much fun having your errors cheered but as a man with plenty of Davis Cup experience, it's surprising to see him that bothered."

Tim Henman Q and A

Another of your Facebook questions to former British number one Tim Henman

O2 arena
AFP

Arjun Jethra: "Should the World Tour Finals stay in London beyond 2015?"

TH: "I think they should. There's an option for an extra year in 2016 and when the event has been as successful as it has with 260,000 people coming through the gates every year, great sponsors, very convenient location and a great city, I think it's going to have to be a very impressive bid for the World Tour Finals to move away from London."

Djokovic 6-1 2-2 Nishikori*

Incredible Hulk
AFP

Just like the incredible hulk, you don't want to make Novak Djokovic angry. Normal service is resumed at the O2 as he blasts his way through the fourth game to quickly peg it back to 2-2.

Andrew Castle

BBC tennis commentator on BBC Two

"An interesting phase here. For the first time this week a challenge for Novak Djokovic."

Get involved

We asked you if you agreed with John McEnroe, who said he would include tie-breaks in the final set of Grand Slam matches, such as at Wimbledon. Let us know your thoughts on Twitter via

#bbctennis

Rafael Nadal
AFP

Elliot Harris Nixon: Couldn't imagine winning any Grand Slam on a tie break. Fed/Nadal Fed/Roddick at Wimbledon were tense classics!

RKGH: No way! Mahut vs Isner, Borg vs McEnroe, Ivanisevic vs Rafter, Federer vs Nadal - All legendary fifth sets

SJ Chowdhury: NO. More exciting without it. We want the drama of the deciding set.

*Djokovic 6-1 1-2 Nishikori

It is not often you see Novak Djokovic rattled, but that is how he looks at the moment. The Japanese fans get a rare opportunity to wave their home-made banners in support of Nishikori as their man holds his serve to take a lead in the second set.

Tim Henman

Former British number one on BBC Two

"Right now Djokovic is in such a commanding position he does not want to be distracted by the crowd."

Break of serve - Nishikori

Djokovic 6-1 1-1 Nishikori*

We have a break of serve. Djokovic double faults to show he is human.

He has not been impressed with the crowd cheering every Nishikori point and sarcastically applauds the crowd after his second serve hits the net to end the second game. The crowd were behind the underdog already, they may be even more so now.

*Djokovic 6-1 1-0 Nishikori

Hang on just a minute. We may have a game after all. Break point for Nishikori.

Tim Henman

Former British number one on BBC Two

"Plan A is not working for Nishikori. Is there any plan B?"

Break of serve - Djokovic

*Djokovic 6-1 1-0 Nishikori

Djokovic moves 15-0 up on Nishikori's serve in the opening game of the second set, before the Japanese player finally wins his first point behind a second serve. The London crowd want to see more tennis, so are cheering every successful point from Nishikori.

Novak Djokovic
AFP

However, there is only one more point to cheer. Djokovic carries on where he left off. He breaks Nishikori's serve to lead 1-0 in the second set, after taking the first 6-1.

Djokovic's results so far this week....

Beat Marin Cilic 6-1 6-1, beat Stan Wawrinka 6-3 6-0, beat Tomas Berdych 6-2 6-2. Phenomenal.

Sue Barker

BBC tennis presenter on BBC Two

"I think the 56 minutes has been the shortest match of the week. That first set was just 23 minutes so we could be in for a record here."

First set - Djokovic

Djokovic 6-1 Nishikori

Coach Boris Becker looks furious as Djokovic misses a volley with the court wide open at 40-0. But Djokovic you old tease, he wins the set with the next point. It only took 23 minutes. Djokovic looks in a hurry and this one may not last long. My fingers can't type fast enough.

Break of serve

*Djokovic 5-1 Nishikori

Kei Nishikori
AFP

It is already an uphill battle for Nishikori. Djokovic makes a rare unforced error in the sixth game, but it still does not matter. We go to deuce, but a powerful forehand, followed by Nishikori drilling into the bottom of the net sees Djokovic serving for the set.