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Adam Miller misses the next two games through suspension after picking up his tenth booking of the season in the 2-1 defeat against Swansea on Saturday.
With Miller now out and Mark Bentley also missing, that could see youngster Stuart Lewis return to the fold.
Gillingham manager Mark Stimson said: “Adam will be a loss because he plays with the right attitude and the right energy.
“Sometimes it is probably too much energy and he tries too hard but you don’t want to take that out of any player.”
Lewis has been left out of the squad in recent weeks as Stimson picked strikers over midfielders.
“What we need at the moment is goals, that’s what is going to get you points and out of the position we’re in,” added Stimson.
“Stuart is more of a defensive midfield player and to have him on the bench would probably be wasting an option
“He’s done nothing wrong, he’s working as hard as he can and he’s just going to have to wait for an opportunity.
"Now Miller and Bentley are suspended, he might force his way into the 16 next week.”