Ulster will miss the services of prop Marty Moore for the remainder of the season following a an ankle ligament injury.
Moore, who has played for Ireland 10 times sustained the blow during Ulster's recently concluded Pro14 game against Edinburgh at BT Murrayfield Stadium where he played for 10 minutes before limping off the field.
The 28-year-old will now consult a specialist to decide on the rehabilitation but the club have already confirmed that he is unlikely to play any part in the ongoing season.
This means Moore will miss the all important Pro14 quarter-finals.
Ulster will also be hoping for Ireland skipper Rory Best to overcome an ankle injury that he sustained against Leinster during the Challenge Cup quarter-final clash as they face Connacht on the first week of May.