Academy scrum-half Kaleem Barreto also starts for Marr.
Stirling County visit Watsonians with Adam Nicol, Hamilton Burr and Lewis Wynne in their pack.
Stafford McDowall and Robbie Smith start, and George Stokes is on the bench, as Ayr entertain Melrose at Millbrae and Glasgow Hawks include Kiran McDonald, Sam Yawayawa, Robert Beattie, Matt Smith and Grant Stewart for Heriot's visit to Scotstoun.