Defender Andrew Milne is set to return to Leeds after injury cut short his loan spell with Darlington.
The teenager was stretchered off just before half-time in the weekend's 5-0 defeat at Torquay after sustaining an ankle problem and is likely to be sidelined for several weeks.
Milne, 19, who made his first appearance in the home defeat to Bradford the previous week, was due to return to Elland Road in early January.
Darlington boss Steve Staunton suffered a further injury blow at Torquay when experienced defender Mark Bower was also forced off with an ankle injury.
Manager Steve Staunton now faces an early selection headache for next weekend's home game with Northampton.
Injuries mean central defenders Steve Foster (foot) - who is sidelined over a contract dispute anyway - Ian Miller (hamstring) and Bower are all out.