St Johnstone will be without James McFadden against Inverness Caledonian Thistle after the midfielder suffered further hamstring problems.
Kilmarnock boss Allan Johnston believes his side were unlucky not to get a point after they lost 1-0 to St Johnstone at Rugby Park.
Brian Graham scored a late penalty for St Johnstone as they beat Kilmarnock 1-0 at Rugby Park.
Kilmarnock boss Allan Johnston has said he will have to give Alexei Eremenko a late check ahead of Saturday's Scottish Premiership match against St Johnstone at Rugby Park.
St Johnstone defender Callum Davidson says teammate Alan Mannus reminds him of ex-England and Arsenal keeper David Seaman.
St Johnstone manager Tommy Wright offered his support to under-fire St Mirren counterpart Tommy Craig after seeing his side win 1-0 in Paisley.
Michael O'Halloran's early goal was enough for St Johnstone as they battled to a 1-0 win at struggling St Mirren.
Holders St Johnstone have been paired with Championship side Queen of the South in the fifth-round draw for the Scottish Cup.