Paddy Jackson chalks up century for Ulster in crunch with Glasgow

His national colleague Iain Henderson will get his first taste of action since tearing a hamstring in December, while lock Alan O’Connor has also recovered from injury and is one of five changes from the side that defeated Zebre three weeks ago. Up front Callum Black replaces Kyle McCall while O’Connor partners Franco van der Merwe at lock and Henderson is in a back-row alongside Nick Williams and Chris Henry.
Stuart Olding is moved from centre to full-back to cater for the return of Ireland’s Six Nations debutant Stuart McCloskey to partner Luke Marshall in midfield. Craig Gilroy occupies one wing with Rory Scholes on the left.