Cooper admitted to rushing players back from injury after Saturday's 1-0 victory over Tranmere. Nathan Byrne, Nathan Thompson and Nile Ranger all started the match despite carrying knocks. They could be rested for the clash.
Ryan Harley and Ryan Mason are expected to miss out once again with knee and thigh problems respectively.
Swindon, who reached the second round courtesy of a bye, have already gone one better than last season, when they fell at the first hurdle after defeat by Oxford.
- Sports & Recreation
- Nathan Byrne
- Ryan Mason