"The injury is right at the top of the thigh, near the groin area. Alan will have a scan to see if he has suffered a thigh strain or whether it's just a tightness." he told the Official Club Website.
"The result of the scan will determine where we go from there but we probably won't know that until Friday. Obviously there is a doubt over him for Saturday's match at Watford."
Better news however for Town manager Joe Royle was that Matt Richards is feeling much better after suffering a blow to the face during Tuesdays game which left him with blured vision, on which Dave commented: "There is better news with Matt.
"He was groggy on the way back from Nottingham but he is much better now. He's got a bit of a headache but it looks like he will make it for the Watford trip, if he keeps improving."