NICKY Bailey's return from injury has been delayed after the midfielder suffered another setback in training.
Bailey has been limited to just two appearances for the Lions this campaign.
He tore his calf in the final pre-season friendly of the summer against Real Mallorca and then suffered a similar injury on his only start against Huddersfield.
The 30-year-old had been pencilled in for a comeback later this month but has been forced to put his rehab on hold.
Physio Bobby Bacic told the club's official site: "Nicky is having the most wretched luck at present.
"Although we do not predict this injury to keep him away from training for long he will need to play in the U21s before he can be considered for first team selection."