Defender moving nearer to return.
However, boss Joe Dunne said in his press conference on Thursday: "We've got Ryan back fit, and he has been training this week. I think he's got one more week's full training to complete, then he'll be joining in with the main group.
The former Southampton left back impressed in his early games for Colchester after his summer switch, but has not played for the U's since the defeat at Coventry City.
U's defender Ryan Dickson is edging closer to first team contention, having been out of action in recent weeks due to illness.
"Hopefully he is over everything that's kept him out of action, and in the meantime we've had a left back in Luke Garbutt who is playing great and, in the upcoming weeks, they're going to push each other, that's for sure."