Midfielder Dawson is expected to be out for at least a fortnight after sustaining a leg injury from a bad tackle during last weekend's 3-0 win at Bristol Rovers.
Boss Russell Slade could therefore stick with the line-up which got past Dagenham in their FA Cup replay in midweek.
However, he will add Andrew Whing to his squad after the on-loan Brighton defender was ineligible to face the Daggers.
Lee Butcher continues in goal after Jamie Jones underwent hernia surgery on Monday which will keep him out for around a month.
Midfielder Adam Chambers is the only other injury absentee following a recent operation on his calves.
Source: PA
Source: PA