Welcome to the Evening Standard live coverage of the 2019 ATP Final.
Roger Federer surprised Novak Djokovic to reach the semi-finals and put an end to Serbia's efforts to finish this year as world number one, leaving Rafael Nadal free at the front in the top spot.
The Spaniard defeated Stefanos Tsitsipas in the first single match of the day but faced nerves to qualify for the semi-finals.
In tonight's session, Daniil Medvedev will play Alexander Zverev as the winner after Jean-Julien Rojer and Horia Tecau vs. Pierre-Hughes Herbert and Nicolas Mahut.
We will bring you live coverage of today's action, plus the results and schedule of the rest of the tournament
2019-11-15T19: 29: 14,000Z
Medvedev vs Zverev: Everything you need to know
Already arrived at this. The last group match after a long shaken week, comebacks and coming out of high profile.
Rafael Nadal's win over Stefanos Tsitsipas means he will have less than 24 hours to prepare for the match against an unnamed semifinalist – but only if Daniil Medvedev defeats Alexander Zverev.
Thin hopes of Russian qualification finally evaporated after Nadal's victory. But he can still deny Zverev in the top four and end his three-game losing streak
Indeed, Medvedev's last win came against Zverev in the Shanghai Masters final in October – his only win against Germany. Zverev has won all four of their meetings before that and will be sure to get his place in the last four.
2019-11-15T18: 53: 38,000Z
Tsitsipas in his condition after a three-hour match …
"It's okay. My body feels good right now. I don't feel pain anywhere. I feel refreshed, honest. After having such a long and difficult match, I feel like I can go out and play tomorrow the same way. So I don't have a problem with that. "
2019-11-15T18: 46: 24,000Z
About potential semifinal opponents, Dominic Thiem and Roger Federer:
"They play with a lot of intensity, using their forehands very well. Roger is very aggressive. Both players are very aggressive but have different styles. I would compare that one perfectly and not use too much strength to play. The other is really force a lot.
"I will take it the same way, both backhand one hand. I have played both. I do not know, do not talk much about them. I respect them, and I have to play well."
2019-11-15T18: 40: 38,000Z
Tsitsipas struggled to understand why he did not know Nadal
"It's very strange, you know. I like to be left-handed. I have never had a problem playing left-handed. My record against left-handed, I think, in my entire career even outside ATP has been positive.
"There is something about him. [His serve] comes with different turns and that makes it very difficult to return. It seems like my brain is used in one particular motion, and suddenly it's like it's reversed. We all know he's not the biggest server on the tour. He uses his service very wisely and intelligently, but he doesn't kill you with his service.
"That did not happen [for me] today. I will definitely work on it and have more practice sessions with left-handed people, because most of the time I train with right-handed players, and do more, because surely I will face it more times in the future. "
2019-11-15T18: 35: 58,000Z
This is what Tsitsipas said in his press conference …
"Well, that's kind of funny. During the game I thought about it [qualifying already] several times, but in the end I really wanted to win, and that victory meant a lot to me because it was against a tough player, the number one player at the moment.
So I came very close, and I would say I left something in the tank. I'm not really full, full. I can be fuller than that, but I'm not disappointed with that.
"I want to win, but maybe I don't want to die on the pitch for that. But even so, everything is going well, very well. My main focus is to play well in the semifinals more than this match. But again, I want to win, so, yes. "
2019-11-15T18: 08: 22.290Z
In the Grand Slam vs. ATP trophy
"It's different. I know it's something big, it's very important you do it because you have to play well all the time. For me personally, if you win the Grand Slam, you win the Slam. Both of them are great. I have something with me something that very special. "
2019-11-15T18: 03: 19.540Z
In the trophy it becomes entertainment
"It's not like when you lose the tournament. I know how I arrived here with preparation and it was very short for me after the injury. For me, it's important to have the opportunity to compete after the first day. It's true that I only played a normal set before the tournament. sometimes you get a little lucky with a draw and win two matches, but here the first game you play is against the best player in the world, I think it becomes much more difficult tennis every day, I go to Madrid feeling better and better. If I leave here with a win, I leave with the feeling I'm doing everything possible. "
2019-11-15T18: 00: 26.103Z
On winning the year-end trophy
"I feel 100 percent. This trophy is a whole year of work, a great year. It's good to win the trophy, it's a perfect satisfaction. We did a lot of good things this year. We had a difficult moment this season but my team played a very important role in helping me and I cannot thank them enough for their support. This is a big thing and 11 years from the first time, it's hard to believe. "
2019-11-15T17: 58: 38.836Z
Currently preparing for the semi-final vs. Federer
"I'm not sure if I will watch the match [Zverev vs Medvedev]. I don't know I have to be ready for anything so I think it is my work that depends. Happy for victory, now I have to wait. I'm not sure if I can go to dinner, to do things that I would like if I play tomorrow. If I don't play, fine. "
2019-11-15T17: 25: 16.566Z
Nadal thanked his team and said he "hoped" to be in the semi-finals to face Federer tomorrow …
"There are bad times and [my team] it's always there, like this year, before Monte Carlo, after Monte Carlo, without the support of all these people, things would be much different for me. They encouraged me to move forward and I could not thank them enough.
"This trophy is a year-long achievement, so today I cannot thank you all enough for all the support in this private match and all the time I played in London.
"But at the same time I have to say it because it's something I really feel from the bottom of my heart, to all the fans who give me their support from all over the world.
"I don't know if I see you tomorrow because it depends on the game this afternoon but I did everything I could today. If I can play in front of you tomorrow against Roger, it will be a great honor. If not, I really hope to see you next year. "
2019-11-15T17: 23: 20.390Z
This is what Nadal said in court …
"It is a real honor to receive this trophy. Honestly, what can I say? I am very happy.
"After all the things I went through in my career in terms of injury, I never thought at the age of 33 and a half I would have this trophy in my hands again. It was something that was very, very emotional for me, a lot of work" Without my team and my family who is here, this is not possible, so thank you very much. "
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Schedule and results
Friday, November 15
12 noon: Robert Farah and Juan Sebastian Cabal 7-6, 6-2 Kevin Krawietz and Andreas Mies
2 pm: Rafael Nadal 6-7, 6-4, 7-5 Stefanos Tsitsipas
6 pm: Jean-Julien Rojer and Horia Tecau vs Pierre-Hughes Herbert and Nicolas Mahut
8 nights: Daniil Medvedev vs Alexander Zverev
Thursday, November 14
12 noon: L. Kubot (POL) / M. Melo (BRA) 6-7, 6-4, 10-7 R. Ram (US) / J. Salisbury (GBR)
2 pm: D. Thiem (AUT) 6-7, 3-6 M. Berrettini (ITA)
6afternoon: R. Klaasen (RSA) 6-7, 4-6 M. Venus (NZL) vs I. Dodig (CRO) / F. Polasek (SVK)
8 nights: N. Djokovic (SRB) 4-6, 3-6 R. Federer (SWI)
Wednesday, November 13
12 noon: J Cabal & R Farah (Col) 2-6, 7-5, 8-10 J Rojer (Ned) & H Tecau (Rom)
2 pm: R Nadal (Sp) 5-7, 6-3, 7-6 D Medvedev (Rus)
6 pm: K Krawietz & A Mies (Ger) 5-7, 6-7 P Herbert & N Mahut (Fra)
8 nights: S Tsitsipas (Gre) 6-3, 6-2 A Zverev (Ger)
Tuesday, November 12
Results: R Ram (US) & J Salisbury (GB) 3-6, 6-3, 10-6 I Dodig (Cro) & F Polasek (Slo)
Results: R Federer (Sui) 7-6 (5), 6-3 M Berrettini (It)
Results: L Kubot (Pol) & M Melo (Bra) 3-6, 4-6 R Klaasen (SA) & M Venus (NZ)
Results: N Djokovic (Srb) 6-7 (5) 6-3 7-6 (5) D Thiem (Aut)
Monday, November 11
Results: K. Krawietz (GER) / A. Mies (GER) 7-6, 4-6, 10-6 * J. Rojer (NED) / H. Tecau (ROU) * The last set tiebreak
Results: D. Medvedev (RUS) 6-7, 4-6 S. Tsitsipas (GRE)
Results: J. Cabal (COL) / R. Farah (COL) 3-6, 5-7 P. Herbert (FRA) / N. Mahut (FRA)
Results: R. Nadal (ESP) 2-6, 4-6 A. Zverev (GER)
Sunday, November 10
Results: R. Ram (US) / J. Salisbury (GBR) 3-6, 4-6 R. Klaasen (RSA) / M. Venus (NZL)
Results: N. Djokovic (SRB) 6-2, 6-1 M. Berrettini (ITA)
Results: L. Kubot (POL) / M. Melo (BRA) 4-6, 6-4, 10-5 * I. Dodig (CRO) / F. Polasek (SVK)  * The last set tiebreak
Results: R. Federer (SUI) 5-7, 5-7 D. Thiem (AUT)