Ulster's Magners League match with the Ospreys at Ravenhill on Friday night has been postponed due to the ongoing freezing conditions.
The ground at Ravehill was deemed unplayable following a pitch inspection carried out on Wednesday morning.
The game is set to be rescheduled for a mid-week night during the Six Nations.
Only six points separate Ulster from Ospreys, on an extremely tight and competitive Magners League table.
Last Saturday, the Province's victorious match with Munster was one of the few weekend sporting fixtures to have survived the cold snap.
Ulster host Edinburgh in the Heineken Cup at Ravenhill next Friday night.
© UTV News