Hearts could again be without Ian Black for the visit of the Buddies.
The midfielder has broken bones in his hand and Hearts will make a late decision over whether to risk him.
Andrew Driver (thigh), David Obua (groin) and Lee Wallace (knee) remain on the sidelines.
St Mirren boss Danny Lennon is hoping to have Aaron Mooy in his squad for the game.
The 20-year-old Australian midfielder is training with Saints while the Paisley club try to come to a financial agreement with Bolton.
Goalkeeper Paul Gallacher is out after undergoing knee surgery while Steven Thomson (calf), David Barron (knee), Craig Dargo (knee) and Sean Lynch (knock) are still sidelined.
Hearts (from): Kello, Barr, Bouzid, Zaliukas, Stevenson, Palazuelos, Templeton, Elliot, Elliott, Santana, Balogh, Kyle, Jonsson, Mrowiec, J Thomson, C Thomson, Skacel, Novikovas.
St Mirren (from): Samson, Mair, van Zanten, Potter, McGregor, Travner, Cregg, McLean, Murray, Higdon, McGowan, Wardlaw, Mathers, Brady, Mooy, McAusland, McQuade, Love, McLennan.