The Northern Irishman was not involved against Celtic in midweek as he was not up to match speed but might come into contention after Lee Johnson was allowed to leave the club before Thursday's transfer-window close. Killie boss Kenny Shiels has no new injury worries.
Inverness midfielder Ross Draper is a doubt after coming off with a knock during Wednesday's late defeat at St Mirren Park. But right-back David Raven is fit again after missing the Paisley trip. Defenders Chris Hogg (knee) and Simon King (ankle) are working their way back from injury.
St Mirren v St Johnstone
Left-back Paul Dummett is added to the St Mirren squad for their clash against St Johnstone after making a second loan move from Newcastle. But midfielder Jon Robertson has rejoined Cowdenbeath on a month-long loan spell. Long-term absentees Darren McGregor (knee) and Thomas Reilly (ankle) miss out but Marc McAusland is fit after being taken off against Inverness in midweek as a precaution.
Murray Davidson is a doubt for St Johnstone. The midfielder missed recent games against Motherwell and Aberdeen with an ankle injury and will be assessed, while Mehdi Abeid and Gwion Edwards, signed on loan until the end of the season from Newcastle and Swansea respectively, could be in contention. Chris Millar, Gary Miller, Steven Anderson and Jamie Adams remain sidelined.