McDermott was far from impressed by his side's capitulation during the 3-0 defeat at Watford last weekend but is unlikely to make sweeping changes for the dead rubber game.
Winger James Henry could be a doubt as he struggles to overcome a hamstring strain and Czech Republic midfielder Marek Matejovsky is also out as he continues to recover from surgery on his abdominal area.
Club captain Ivar Ingimarsson is out with a hamstring injury and Noel Hunt and Chris Armstrong remain sidelined with long-term knee problems.
Oliver Bozanic is back at the club after a loan spell with Aldershot and could be named in the squad.
Sunday's match kicks off at 1pm.