The Paris Masters will go ahead as scheduled starting next week but behind closed doors to comply with a second nationwide coronavirus lockdown, organisers confirmed on Thursday.
"Following the latest announcements by the French government and the introduction of another national lockdown in France as of October 30, the Paris Masters, which will be played at the Accord Arena from October 31 to November 8, will be closed to the public," read the statement from the French Tennis Federation (FFT).
The Paris Masters at the 20,000-seater Bercy Arena carries a total prize money purse of 4.3 million euros ($5 million).
The FFT said that ever since the start of the pandemic they had worked "in constant liaison with the French government" to determine how best to stage the event.
Defending champion and world number one Novak Djokovic opted out of playing in Paris, choosing instead to compete in Vienna.
If Nadal wins a maiden Paris title, he will equal Djokovic's record of 36 Masters victories.