Ulster will be without backs Michael Lowry, Aitzol Arenzana-King and Robert Baloucoune for Saturday’s United Rugby Championship game against Glasgow at Scotstoun (17:30 BST).
Full-back Lowry and wing Baloucoune suffered concussions in the Irish province’s 34-29 defeat by Edinburgh in their opening URC game of the 2026-27 campaign.
Winger Arenzana-King picked up a knee injury during the game in Belfast, from which Ulster emerged with two bonus points.
All three players started last weekend’s fixture, with Lowry captaining the side and scoring the first of Ulster’s four tries in a match which Richie Murphy’s side’s comeback fall short after they bounced back from a 34-5 deficit.
Glasgow began their season with an impressive 26-20 victory on the road at Munster.