Glenn has revealed that there are a few fitness doubts ahead of the trip to Stamford Bridge to face Chelsea.
Dean Richards, Darren Anderton, Les Ferdinand and Neil Sullivan were rated doubtful on Tuesday by Glenn
"There is a few doubts that we've got fitness wise," reports Glenn. "Dean, Darren and Neil are all suffering from knocks. Les was carrying a knock on Tuesday too so we've got to wait and see how they are.
"We'll train in the morning and check up on them later in the day."
Glenn also reports that there are no imminent first team returns on the cards for the long-termers on the injury front.
"Not at the moment. None of them will be returning to the first team fold at this moment in time. It's more building their training up and a couple of them might be ready for the reserves soon."