Rafael Nadal only at ATP finals because of Novak Djokovic - he needs Roger Federer favour

Rafael Nadal will finish the year top of the ATP world rankings if he reaches the final or Novak Djokovic does not win the title.

from Daily Express :: Tennis Feed https://www.express.co.uk/sport/tennis/1204309/Rafael-Nadal-Roger-Federer-Novak-Djokovic-ATP-Finals-world-rankings-injury
via Express