Irish outhalf, Paddy Jackson, will make his captain’s debut for Ulster on Sunday afternoon in the Guinness PRO12 game against Scarlets at Kingspan Stadium.
However, the honour of leading the side out will fall to number eight Roger Wilson, who will make his 200th appearance for the Province.
He becomes the second player in Ulster to reach 200 caps - Andrew Trimble holding the all time record of 202.
Wilson and Jackson are two of seven changes to the Ulster starting team which defeated Glasgow 13-10 to keep them top of the table, a point ahead of fourth placed Scarlets.
Ruan Pienaar and Ian Humphreys, who went through concussion protcols this week, are named on the bench.
With Rob Herring ruled out with injury, Ulster have handed a first competitive start to rookie, John Andrew at hooker and the replacement, Jonny Murphy, would make his senior competitive debut if called upon.
ULSTER: S Olding, C Gilroy, D Cave, L Marshall, J Stockdale, P Jackson (capt), P Marshall; A Warwick, J Andrew, R Lutton, A O’Connor, F van der Merwe, R Diack, C Henry, R Wilson.
Replacements: J Murphy, K McCall, B Ross, P Browne, C Ross, R Pienaar, I Humphreys, S Arnold.
Scarlets: M Collins, G Owen, R King, H Parkes (capt), DTH van der Merwe, A Thomas, A Davies, P John, K Myhill, P Edwards, G Earle, D Bulbring, A Shingler, W Boyde, M Allen.
Replacements: R Elias, D Evans, R Jones, M Paulino, R Pitman, R Williams, D Jones, S Evans.