Dons Injury Update

Hart, who showed on Saturday how much the Dons have been missing him this term, suffered a recurrence of a long-standing groin problem that has seen him appear only sporadically in the first team this season. Jimmy now fears he could face an extended spell on the sidelines.

Calderwood said: "Kevin McNaughton and Steve Lovell should also be back fit for Saturday. Hart has played a lot of games in such a short space of time since coming back and maybe it is a case of too much too soon for him.

"Michael, McNaughton and [Chris] Clark, are important players for us. When we have all three of those players available it gives us a lot of options, especially with the pace they have all got."

Meanwhile Zander Diamond expects to return to action soon for the Dons despite suffering a knee injury in Sunday's bruising battle with Hearts.

The Scotland U-21 captain sustained the injury in the closing stages of the game when he crashed into Rudi Skacel and had to be carried off the pitch.

But the big man said: "I had to go for the challenge on Skacel but the impact of the tackle left me with a really numb sensation. I knew right away there was no way that I would be able to continue.

"Actually I felt physically sick after the collision which made me believe that it was quite serious.

"The knee is still swollen and I'm awaiting a full diagnosis from our physios. But I'm fairly confident that it's not as bad as I first thought."