Hearts striker Liam Boyce has recovered from illness and a back problem as he looks to repeat his recent match-winning performance against Rangers in the William Hill Scottish Cup quarter-final.
Toby Sibbick remains on the sidelines with illness.
Marcel Langer completes a two-game ban but Aidy White is available again, while Peter Haring (pelvic trouble) remains sidelined.
Jermain Defoe has an outside chance of making the Rangers squad.
The veteran striker is on his way back from a calf injury which has kept him out since the end of January.
Florian Kamberi, on loan from Hibernian, is cup-tied but fellow striker Alfredo Morelos returns from suspension.
Hearts provisional squad: Zlamal, White, Hickey, Halkett, Smith, Dikamona, Souttar, Bozanic, Clare, Meshino, Ikpeazu, Boyce, Naismith, Walker, Irving, Moore, Avdijaj, Garuccio, Pereira.
Rangers provisional squad: McGregor, Tavernier, Barisic, Halliday, Edmundson, Goldson, Katic, Davis, Jack, Kamara, Arfield, Aribo, Hagi, Kent, Defoe, Ojo, Morelos, Stewart, Foderingham.
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