New St Johnstone manager Steve Lomas will assess his squad over the weekend when he takes his first training sessions.
Frazer Wright should recover from a dead leg in time to face Aberdeen on Monday.
Striker Sam Parkin (ankle) remains on the sidelines while Jamie Adams (hamstring) is closing in on fitness.
Aberdeen will be without the suspended Rory Fallon.
Fallon was shown a straight red card against Rangers last weekend and, although the club were partially successful in their appeal, the New Zealand striker's offence still faces a one-match ban, joining suspended Ryan Jack on the sidelines.
Rob Milsom (ankle) is almost certainly out, but late decisions will be made on whether Scott Vernon and Peter Pawlett can play.
St Johnstone (from): Enckelman, C Davidson, Maybury, Mackay, Anderson, Morris, Gibson, Craig, Moon, Millar, Sheridan, Sandaza, Haber, Caddis, May, Mannus, Durnan, M Davidson, Wright.
Aberdeen (from): Gonzalez, Foster, Considine, Mawene, Osbourne, Milsom, Arnason, Fyvie, Clark, Vernon, Mackie, Magennis, Pawlett, McArdle, Brown, Chalali, Megginson.