Roger Federer and Rafael Nadal could meet in the semi-finals of the Paris Masters and the duo were drawn in the same half.
The two players last played each other at Wimbledon in July and produced an enthralling semi-final battle.
Last month, they linked up together for Team Europe at the Laver Cup.
Should they both come through their respective sections of the draw, it would be the 41st match between them.
World no 1 Novak Djokovic is on the other side of the draw and will open his campaign against either Dusan Lajovic or Richard Gasquet in the second round.
The Serbian could meet Stefanos Tsitsipas in the quarter-finals and in-form Daniil Medvedev in the semis.
The final Masters 1000 event is the final chance for players to reach the ATP Finals.
There are two spots to play for with Alexander Zverev, Matteo Berrettini, Roberto Bautista Agut, David Goffin and Fabio Fognini all needing deep runs.
How to watch the Paris Masters
Coverage of the Paris Masters will be broadcast on Amazon Prime Video.
This year, Prime Video will broadcast on-site, live studio coverage across tournaments, including at the BNP Paribas Open from Indian Wells, the Fever Tree Championships from The Queens Club, the US Open, and the Nitto ATP Finals from The O2.
On-site field reporters will bring customers the latest action, analysis and commentary right from the court side at many tournaments.
In addition to 37 ATP Tour events and the US Open available exclusively on Prime Video with a Prime membership, Prime members in the UK who subscribe to Eurosport Player through Prime Video Channels for an additional £6.99 per month (following a 7-day free trial) will also benefit from full coverage of the French Open, and daily highlights and live coverage from the men’s and women’s finals of Wimbledon in 2019.