The Saturday match between Ulster & Leinster in the United Rugby Championship has been postponed.
Because of Covid-19 cases within the Ulster squad, the New Year's Day match at Belfast's Kingspan Stadium had to be canceled.
It is the result of Connacht being postponed in Ulster's derby.
Saturday's match is one among three URC round nine matches – alongside Dragons v Cardiff or Edinburgh v Glasgow. This game will be called off for Covid-19 reasons.
All three matches will be rescheduled.
Ulster released a statement saying that the United Rugby Championship medical advisory team had consulted with the medical teams of Cardiff, Dragons and Glasgow Warriors and concluded that the fixtures could not proceed as planned.
Saturday's match was to be Dan McFarland’s Ulster side's second of three URC interprovincial fixtures. They will travel to Thomond Park to face Munster on Monday, 8 January.