Five-time champion Djokovic was drawn in Group Guga Kuerten on the day he returned to the top of the rankings and Rafael Nadal withdrew from the season-ending tournament due to ankle and abdominal injuries.
Little spared by injuries since the beginning of his career, the "Bull of Manacor" has not played in competition since the beginning of September and its abandonment in the semi-finals of the US Open because, at the time of a knee problem.
"This way I hope to be in full condition for next season".
Nadal's decision means that Novak Djokovic is guaranteed to end the year as the leader of the world rankings.
"It was a complicated year, very good at the tennis level when I was able to play and at the same time very bad as far as injuries are concerned", Nadal said.
We have to go back to Paris 1993 to begin this story, with Goran Ivanisevic beating Michael Chang, Pete Sampras, Stefan Edberg and Andrei Medvedev to grab the second and the last Masters 1000 crown on a fast indoor carpet court.
Any year in which you win an 11th title at Roland Garros, Barcelona and Monte Carlo is hardly a wasted one, and yet this has been a deeply frustrating year for Nadal. "It's been a phenomenal return to form that would have been hard to imagine just six months ago", ATP executive chairman and president Chris Kermode said.
Nadal's withdrawal in Paris allowed Novak Djokovic to replace him at the top of the world rankings.
Djokovic's dominant run ended on Sunday when he was beaten 7-5, 6-4 by Russian Kharen Khachanov in the Paris Masters final.
The ATP Finals take place in London on November 11-18, with Group Hewitt matches kicking off the action on Sunday. But he competed in only three events after the French Open in June.