Saints manager Stephen Robinson has made two changes from the side that defeated Aberdeen 1-0 last weekend at The SMiSA Stadium.
Captain Mark O'Hara misses out after missing training this week with a hamstring injury, while Oisin Smyth drops to the bench. The pair are replaced by Caolan Boyd-Munce and Roland Idowu. Marcus Fraser captains the side in O'Hara's absence.
17-year-old Youth Academy graduate Evan Mooney returns to the squad for the first time since undergoing surgery in March. Owen Oseni is out after picking up an injury in a reserve match against Newcastle earlier in the week.
St Mirren: Hemming, Fraser (c), Gogic, Taylor, Alebiosu, Boyd-Munce, Phillips, Idowu, John, Ayunga, Mandron
Subs: Urminsky, Bwomono, Iacovitti, Tanser, Smyth, Kiltie, McMenamin, Scott, Mooney
Dundee United: Walton, Strain, Sevelj, Gallagher, Adegboyega, Ferry, Docherty, Sibbald, Middleton, Trapanovski, Dalby
Subs: Richards, Cleall-Harding, Campbell, Fotheringham, Paton, Babunski, Fiorini, Van der Sande, Moult
Supporters outside the UK and Ireland can watch the match live on St Mirren TV as part of their subscription. UK-based subscribers can listen to live audio commentary.
