Steven Naismith faces another couple of weeks out with a hamstring injury while Aaron Hickey and Aidy White remain doubts and Callumn Morrison and goalkeepers Colin Doyle and Zdenek Zlamal will also miss the visit of
Ladbrokes Premiership bottom club St Johnstone.
The pair missed two games after both being sent off against Aberdeen.
Hearts provisional squad: Pereira, Smith, Hickey, Berra, Brandon, Dikamona, Irving, Whelan, Bozanic, Clare, MacLean, Ikpeazu, Keena, Meshino, Wighton, Walker, Damour, Silva.
St Johnstone provisional squad: Clark, Duffy, Ralston, Tanser, Vihmann, Gordon, Kerr, Holt, Swanson, Craig, McCann, Wright, O'Halloran, Kane, May, Kennedy, Wotherspoon, Davidson, Hendry, Booth, Parish.