Iain Henderson (hand) and James Hume (groin) have both had surgery during the off-season and continue to rehabilitate their respective injuries. They join Will Addison (lower leg), Jude Postlethwaite (knee), and Ben Moxham (shoulder) on the current injured player list.
The following players are also unavailable for selection this week due to low grade injuries picked up in training: David McCann, David Shanahan and Andy Warwick.
Jacob Stockdale has reintegrated into full team training and is available for selection.
Squad updates in association with The Ulster Independent Clinic.