Ross County have shaken off the sickness bug which affected their preparations ahead of Saturday's 4-0 defeat at Livingston.
Liam Fontaine, Brian Graham and Keith Watson are set to return to the fold against Motherwell.
Michael Gardyne (hamstring, Ross Draper (knee) and Tom Grivosti (foot) remain out while Don Cowie (knee) and Iain Vigurs (foot) are working their way back to fitness.
Motherwell will assess midfielder Liam Donnelly ahead of the trip to Dingwall.
The Northern Ireland international went off with a tight hamstring before half-time in Saturday's victory over Kilmarnock.
Christy Manzinga (hamstring) is out while Christian Ilic is working to come back from a similar problem. Long-term absentees Charles Dunne (groin) and David Turnbull (knee) remain out.
Ross County provisional squad: Laidlaw, Baxter, Foster, Fraser, Kelly, Fontaine, Watson, Spittal, Paton, Chalmers, Mullin, Stewart, Spence, Reid, McKay, Graham, Erwin, Power, Henderson.
Motherwell provisional squad: Gillespie, Tait, Carroll, Grimshaw, Mugabi, Hartley, Gallagher, Donnelly, O'Hara, Maguire, Polworth, Campbell, Seedorf, Hylton, Long, Cole, Scott, Semple, Carson.
