Stuart Olding's availability for Ireland's summer tour to the United States and Japan is in serious doubt.
The Ulster centre is to see a specialist after suffering an injury to his left ankle during last week's loss to Ospreys.
— Irish Rugby (@IrishRugby) May 3, 2017
Ulster confirm a 'significant left ankle injury' for Stuart Olding.
The guy has absolutely no luck. Shame if he misses out on Ireland tour.— Murray Kinsella (@Murray_Kinsella) May 3, 2017
Ruan Pienaar may have played his last game for the province, as a back issue makes him a serious doubt for Saturday's season-ending derby with Leinster.
Charles Piutau and Stuart McCloskey are both undergoing treatment, with the hope being they'll be fit for the game at Kingspan Stadium.