Centre-back Coughlan was dismissed in the 55th minute of the 1-0 loss having been shown a second yellow card and he will now serve a one-match suspension.
His absence will force a defensive reshuffle for manager Paul Simpson, which will see either Shane Cansdell-Sherriff moving across into the middle from full-back or youngster Harry Hooman being handed his chance.
Simpson, who this week penned a new 12-month contract extension with the League Two outfit, is also working closely with a couple of unnamed players who picked up knocks in the defeat to Vale last Saturday, although he will be boosted by the return of previously suspended midfielder Joss Labadie.
Goalkeeper Andres Arestidou is likely to be handed his chance on the bench once again despite Chris Neal's recent return from a groin injury, with the summer signing building up his sharpness in the reserves.
Striker Omer Riza is back in light training with a view to a return to full training next week, while midfielders Craig Disley (knee) and Terry Dunfield (shoulder) are also making good progress with their rehabilitation. Defender Mike Jackson (bone bruising) remains sidelined for the long-term.