Leon Balogun returns from a quad injury as Rangers look to take another huge step towards the title.
Striker Kemar Roofe and midfielder Ryan Jack (both calf) will rejoin the squad next week with skipper James Tavernier also working his way back to full fitness.
And Ianis Hagi will fancy his chances of returning to the starting XI and has been given a key role in both league wins over Jim Goodwin's side this season.
Strikers Eamonn Brophy (fractured foot) and Kristian Dennis (Achilles) are the only men ruled out for St Mirren ahead of facing the champions-elect.
St Mirren know a positive result will heap the pressure on Dundee United with both battling out for a place in the top six.
Potential Rangers line-up
Provisional Rangers squad
Allan McGregor
Jon McLaughlin
Andy Firth
Filip Helander
Connor Goldson
Leon Balogun
Jack Simpson
Calvin Bassey
Borna Barisic
Nathan Patterson
Scott Arfield
Steven Davis
Bongani Zungu
Glen Kamara
Joe Aribo
Ianis Hagi
Ryan Kent
Scott Wright
Greg Stewart
Cedric Itten
Alfredo Morelos
