The reserve fixture at Wrexham's Colliers training ground is scheduled to kick off at 1:00pm.
Morais was an unused substitute for City's victory at Crewe Alexandra in Sky Bet League 1 on Easter Monday but the Portuguese winger hasn't actually been involved in a match of any kind since last summer.
His previous outing in City colours came in a pre-season friendly against Scottish side St Mirren, just a couple of days before the 30 year-old suffered a serious knee injury in training.
First year professionals Sam Wright, James King and Dylan Mottley-Henry are expected to join Morais in City's line up against Wrexham.
City's reserves have won their last five games in the Final Third Development League including a 1-0 victory at Shrewsbury Town last Tuesday.