The seventh round clash of Pro14 between Dragons and Edinburgh scheduled to be played on Monday has now been postponed.
This is the third fixture involving Dragons have been postponed due to Covid-19 following their earlier encounters against Connacht and Glasgow.
The decision follows after advice from Public Health Wales and as a result the players are currently on a 14-day isolation.
A statement released from Pro14 confirmed the news on the game's postponement and is expecting Dragons to feature in the eighth round clash against Benetton.
"Following advice from Public Health Wales, Dragons have taken the decision, with the full support of PRO14 Rugby, to isolate for 14 days and will not return to organised team training until later this week.
"This will mean there is not enough adequate preparation time to ensure players can return safely to full match intensity.
"Everyone at the region and PRO14 Rugby full expects Dragons to fulfil their round eight fixture with Benetton Rugby (on November 29), and their games with Connacht and Edinburgh will be rescheduled for early 2021."