St Mirren winger Jordan Jones is likely to miss the cinch Premiership encounter with Dundee United.
The Northern Ireland suffered a shoulder injury against Hearts and could be missing for several weeks.
Matt Millar’s season could be over after a scan showed a tendon problem just as he was ready to return from a hamstring injury.
Midfielder Ian Harkes will miss out for the Terrors.
The American has had a scan on the leg injury which forced him off against Celtic on Monday and United are awaiting the results.
Tony Watt (hamstring) remains a doubt despite being back training this week while Peter Pawlett (Achilles) is out for the season.
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