Dons captain Ryan Jack could be facing several weeks on the sidelines because of a knee injury.
Jack has had scans done on the injury, which kept him out of last weekend’s 2-1 victory over Partick Thistle.
Dons boss Derek McInnes confirmed the scans have shown Jack will require surgery and could be out for several weeks.
McInnes said: “Ryan will see a specialist surgeon to find out what work needs to be done on his injured knee.
“We have accepted he will need surgery.
“We are hoping we are talking a matter of weeks rather than months in terms of Ryan being out. We won’t really know until he has been examined properly.”
Winger Jonny Hayes is also sidelined at the moment because of a torn hamstring.
McInnes revealed midfielder Peter Pawlett is also a major doubt for Saturday’s league visit to Celtic because of an unspecified injury.
But he remains convinced they can still get the result they want at Celtic Park.
McInnes said: “Injuries are part and parcel of the game.
“We will just crack on with it, there is no sense of doom and gloom in our camp.
“We have won big games without key players before and are confident we can do that again.
“It’s a case of adapting and seeing how others react to having the chance to play.”