Manager Derek McInnes has a host of injury problems ahead of Bristol City's home encounter against Millwall tomorrow night.
Loan arrival George Elokobi has been ruled out for the remainder of the season after fracturing and dislocating his ankle during the weekend's 3-2 loss to Leeds United at Ashton Gate.
Fellow defender Joe Bryan is doubtful with concussion, while left-back Greg Cunningham will not return before November because of an ankle complaint.
Visiting Millwall go into the match in the Championship's relegation zone following a slow start to the new season.
A positive result against the Robins will have to be achieved without skipper Paul Robinson, who has a groin injury.
Recent form
Bristol City: LDWLLW
Millwall: DLLLWL
Possible lineups:
Bristol City: Heaton; Foster, Wilson, Fontaine, Carey; Adomah, Kilkenny, Pearson, Woodford; Stead, Baldock
Millwall: Forde; Lowry, Shittu, Smith, Dunne; Batt, Abdou, Trotter, Henry; Keogh, Henderson
Sports Mole says: 2-1