Sunday, January 20
Kallum Higginbotham is in the Motherwell squad after boss Stuart McCall signed the 23-year-old Huddersfield forward on loan until the end of the season. Stopper Shaun Hutchinson has recovered from a tight hamstring while defender Steven Saunders is available again after recovering from a knee injury.
St Johnstone boss Steve Lomas will assess the few "niggles" he has in his squad, but defender Steven Anderson, however, is ruled out again with a knee injury. Midfielder Jamie Adams will undergo surgery on a back problem which has decimated his season and is unlikely to feature again before the end of the campaign.
Last season: Motherwell 5 St Johnstone 1, Motherwell 3 St Johnstone 2, St Johnstone 0 Motherwell 3, Motherwell 0 St Johnstone 3
Last five league matches: Motherwell W L W D L; St Johnstone D L D D W
Top scorers (all competitions): Michael Higdon (Motherwell) 13; Murray Davidson (St Johnstone) 6
Referee: William Collum (Scotland)