Gillingham manager Mark Stimson could be forced to make changes for Carlisle's visit to Priestfield.
Stimson admitted a couple of first-team players have flu and missed training on Thursday morning while a further player picked up a thigh strain in the midweek defeat by Leyton Orient.
He refused to name the players but did reveal that if they are ruled out then there will be enforced changes to his ideal starting line-up.
Meanwhile, long-term absentees Danny Jackman and Simon King have had differing news this week.
Both players went to see consultants about their shoulder and ankle ligament injuries, respectively. Jackman was told he could be back in January while King was told he would not be back before January, with no date given.
Gillingham have no suspensions for the match but Josh Gowling faces his former side knowing one more yellow card would incur a ban as he sits on nine bookings.
Carlisle manager Greg Abbott is battling with injuries.
The Cumbrians go into the match on the back of two wins this week, including the 3-2 midweek victory against Hartlepool.
But Abbott will again be without the services of Marc Bridge-Wilkinson, Richard Offiong, David Raven, Simon Lakeland and Paul Thirlwell for the 700-mile round trip.
Bridge-Wilkinson is still out with a knee problem while Offiong is missing after tweaking a knee ligament in training last week.
Raven is on the long road to recovery from a hip injury and Lakeland is still not ready to return from a medial ligament problem, despite beginning training again.
Meanwhile, skipper Thirlwell is excepted to be out for another seven days with an Achilles problem.
But the news regarding midfielder Adam Clayton is more positive. The 20-year-old was on the bench against Hartlepool after taking a boot to the knee and is available.
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