Gilroy back for changed Ulster clash with Oyonnax

Back to fitness after a facial injury, Gilroy is one of eight changes from the side that lost to Munster last week. He finds himself at full back, replacing the injured Louis Ludik, with Sam Arnold making his first European start on the right wing as Andrew Trimble gets a well-earned break.
Ian Humphreys and Paul Marshall slot in at half-back for the rested Paddy Jackson and Ruan Pienaar.