The Guinness PRO14 round 8 fixture between Connacht and the Ospreys, the two third-placed sides in the Conferences, has been postponed.
The game was due to take place on Saturday in Galway, however, one Ospreys player has returned a positive case of Covid-19 and others identified as close contacts are now isolating.
Having considered all the available evidence, the PRO14 Rugby Medical Advisory Group has deemed that this fixture cannot go ahead.
Benetton Rugby, who played against the Ospreys last weekend, carried out routine squad testing this week and returned negative results all round.
PRO14 Rugby will examine potential dates in early 2021 to reschedule the Connacht v Ospreys game.