Mark Warburton says Nottingham Forest are taking a defensive 'hit'
Nottingham Forest are having to deal with mounting defensive problems after an injury to centre-back Matt Mills.
Mills was forced to come off before half-time in Saturday's 2-1 defeat against Bristol City and joined Danny Fox (knee), Tendayi Darikwa (ankle) and Jack Hobbs (back) on the sidelines.
Armand Traore has also not appeared in the past two games.
But manager Mark Warburton refused to be drawn on the reasons for the left-back's absence.
Warburton told BBC Radio Nottingham that he would "see on that one" when asked when Traore would return.
"We've taken a hit to the defensive unit and people are having to step up," Warburton added, referring to midfielder Ben Osborn, who played as a makeshift left-back against the Robins after Mills' injury.
The Reds have not had a defender on the bench for their previous two matches.
Hobbs has only started three matches this season, from a total of four appearances, and Fox has not played since October.
But Darikwa could return soon following the ankle problem that has forced him to miss the past four games.