Connacht's clash with Ospreys, due to take place tomorrow in Galway, has been postponed.
It's as a result of a positive Covid-19 test in the visitors' squad. Although the player in question is now isolating, the Guinness Pro 14's Medical Advisory Group deemed that the fixture cannot go ahead.
The Welsh side played Benetton Treviso last weekend, but the Italian club have returned all negative results in their squad testing since.
It follows yesterday's news that Leinster's game with Scarlets was also postponed after positive Covid-19 cases in the Welsh club's squad.
Connacht were set to be without Abraham Papali'i who was handed a five-week ban earlier in the day.
Pro14 say they will look to early next year to re-fix the game.