Roger Federer was on the road to Spain's Rafael Nadal in the 1,000-point Paris Masters Championship, while Russian Daniel Medvedev took the Serbian Novak Djokovic in the draw on Friday.
Nadal will begin his search for his first title, the last Masters of the Year, against the winner of the match between Frenchman Adrian Manarino and a preliminary player.
In the quarter-finals of the tournament, there is likely to be a confrontation between the Spaniard and the current defending champion, Russian Karen Khachanov, and another between Federer and the German Alexander Zverev.
The Swiss will begin his career at the tournament, facing the winner between Georgian Nicolaus Basilaashvili and Moldovan Rado Albot.
On the other hand, Djokovic will start his career in the tournament, facing the winner of the match between compatriot Dusan Layovic and Frenchman Richard Gasquet.
The Serbs are likely to play quarter-final against Greece's Stefanos Tsitsipas, while Medvedev - who will open his career against Argentine winner Guido Pia and one of the preliminary players - will face Austrian Dominic Tim.
Nadal will be the world number one on November 4, after the tournament, whatever the results.