The two teams were set to lock horns at the Thohoyandou Stadium in the Limpopo Province on Wednesday, 28 November.
However, the encounter has since been moved as Sundowns will be competing in the 2018/19 Caf Champions League according to Leopards media officer Barry Ramunenyiwa.
“Yes, I can confirm that our game against Sundowns has been moved," Ramunenyiwa told Daily Sun.
The club official also indicated that the new date for the fixture would be released in due course.
"We have yet to receive the new date from the league,” he added.
This means Leopards' next league game will be against Bidvest Wits at home on December 01, while Sundowns face Tshwane rivals SuperSport United away on the same day.
Sundowns are scheduled to face Leones Vegetarianos of Equatorial Guinea in the Champions League preliminary round first-leg match on 27-28 November.
The 2016 Champions League winners will be away to Vegetarianos, while the second-leg clash is set to take place on 4-5 December in South Africa.
The winner on aggregate will lock horns with either FC Nouadibhou (Mauritania) or Ahli Benghazi of Libya in the first round.