The Champions Cup final will not take place in Marseille this year as originally scheduled.
The Stade Velodrome had been due to host the European rugby showpiece, along with the Challenge Cup final, on the weekend of October 16-18.
A new venue will be announced and Marseille will host the 2021 finals, with the Tottenham Hotspur Stadium in London playing host to the 2022 finals.
Both Leinster and Ulster are still in the mix in the competition with Leo Cullen's side due to take on Saracens and Ulster meeting Toulouse.
"Due to the many uncertainties created by the Covid-19 pandemic, it has been decided that the 2020 Heineken Champions Cup and Challenge Cup finals will not now be held in Marseille as planned and the matches will be played at a new venue or venues," the EPCR said.
"With tens of thousands of fans scheduled to travel to the south of France, the Board of EPCR and the local organising committee have agreed that insufficient safeguards are currently in place during the public health crisis to stage two high-profile matches at the 67,000-capacity Stade Vélodrome.
"As a consequence, EPCR is currently working with its shareholder leagues and unions to secure an alternative venue or venues for the two finals which will be played on the weekend of 16/17/18 October, and details will be announced as soon as practicable."
