Blackwell has a number of other injury problems to contend with as defender Chris Morgan is around 10 days away from a return following a rib injury while fellow centre-back Marcel Seip (hamstring) is also out.
Midfielder James Harper is sidelined with an ankle injury and goalkeeper Mark Bunn is absent with a broken hand leaving Ian Bennett to continue in goal.
However, defender Andrew Taylor has now fully recovered from a hamstring injury and should be named in the squad having missed the past five league outings.
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Source: Team Talk
Source: Team Talk