Billy O'Brien and Pal Fjelde will make their St Mirren debuts after being named in the starting eleven.
Jack Ross makes five changes from the side that drew 1-1 with Dunfermline at East End Park last week with O'Brien, Fjelde, Jack Baird, Kyle Magennis and Lewis Morgan coming into the starting line up in place of Jamie Langfield, the now departed Jason Naismith, Andy Wesbter, Rocco Quinn and Rory Loy, who can't paly against his parent club.
Saints face Dundee at Dens Park in the fourth round after beating Spartans 5-1 at the Paisley 2021 Stadium in the third round.
Kick off is at 3pm and we'll have the action covered on our official Twitter and Facebook pages.
St Mirren: O'Brien, Fjelde, Baird, MacKenzie, Irvine, Storie, Mallan, Magennis, Morgan, McAllister, Sutton
Subs: Langfield, Webster, Clarkson, McLear, Whyte, MacPherson, O'Keefe
