Swindon are likely to be without Vincent Pericard for the visit of Colchester as the striker battles to recover from yet another injury.
Pericard has struggled to string a consistent spell of games together since arriving at the County Ground from Carlisle at the start of the year.
His latest setback came shortly before half-time during Tuesday`s Johnstone`s Paint Trophy exit to Brentford when he was substituted nursing a groin problem.
Captain Jonathan Douglas (broken toe) returned to training on Thursday but Saturday`s encounter is also likely to come too soon for him.
Fellow midfielder Simon Ferry, centre-back Andy Frampton (both ankle) and full-back Kevin Amankwaah (knee) will definitely miss out as they continue their respective recoveries.
The Robins desperately need to find some consistency this term but will find the going tough against third-placed Colchester, who have yet to lose on their travels.