ATP rankings: Who will join Roger Federer and Rafael Nadal at the ATP World Tour Finals?
ATP RANKINGS - who will qualify for the ATP World Tour finals in London?
ATP Rankings: Roger Federer and Rafael Nadal are in action in London
ATP WORLD TOUR RANKINGS
1. Rafael Nadal
Two Grand Slam wins, he wrapped up the world No 1 spot at the Paris Masters for the fourth time. Has never won at the World Tour Finals.
10555 pts
2. Roger Federer
Withdrew from Paris to gift Nadal the No 1 spot. Two Grand Slam wins in 2017 and is eyeing his seventh World Tour Finals title.
9005 pts
3. Alexander Zverev
Fell in three sets to Robin Haase in Paris opener. Has withdrawn from Next Gen finals to concentrate on London - although he will play there in an exhibition in lead-up to London.
4400 pts
4. Dominic Thiem
Place is already secure. Meets Fernando Verdasco in Paris last-16 as he bids to find form ahead of London.
3815 pts
5. Marin Cilic
Also in action in Paris but his place at London is already secure.
3715 pts
Alexander Zverev will play in London for the first time
6. Grigor Dimitrov
Will meet John Isner in Paris third round with a win having big consequences. His place is secure - but he could reach Del Potro in quarters. Victory there would end the Argentine's chances of qualifying.
3650 pts
7. Stan Wawrinka
Season over due to injury. Will not play in London. Had knee surgery in August and will be back for Australian Open
3150 pts
8. David Goffin
Will qualify if he beats Julian Benneteau in third round today.
2975 pts
9. Pablo Carreno Busta
Lost in Paris Masters first round to Nicolas Mahut. Likely to be pipped in Race to London.
2615 pts
10. Novak Djokovic
Miserable season over due to elbow injury. He, like Wawrinka, will return in Australia.
2585 pts
David Goffin will feature at the ATP World Tour finals
11. Sam Querrey
The Wimbledon semi-finalist cannot qualify after round one loss to Filip Krajinovic in Paris.
2535 pts
12. Juan Martin del Potro
Won in Paris quarters but must reach semis to pass Carreno Busta. John Isner or Grigor Dimitrov up next.
2505 pts
13. Kevin Anderson
US Open runner-up can't qualify after falling to Fernando Verdasco in second round.
2470 pts
14. Jo-Wilfried Tsonga
Cannot qualify after second round loss to Julian Benneteau in Paris
2320 pts
15. Andy Murray
Season over due to injury. Hasn't played since Wimbledon but is back on the practice courts.
2290 pts
16. Lucas Pouille
Frenchman must reach Paris final just to have a chance of qualification.
2235 pts