And McLaughlin could start in goal with Allan McGregor struggling to face the Buddies. Ross McCrorie is a doubt with a knock while Jermain Defoe (hamstring) and Nikola Katic (knee) definitely miss out.
St Mirren boss Jim Goodwin has an unchanged squad.
Sam Foley came through 90 minutes in his return from hernia surgery last weekend.
Kyle Magennis and Ryan Flynn remain out with long-term knee injuries.