Morais is suffering from an infection following a bout of ‘flu and forced him to miss their recent games against Macclesfield Town and MK Dons.
Luton Town loanee Luke Gambin is back in training following a nerve problem in his leg which has caused him to miss the last three matches.
Reds’ only other absentee is the long-standing knee injury victim Jimmy Smith as Gabriele Cioffi expects to choose from an otherwise full squad.