The veteran striker has missed Pompey's last three games with a hamstring injury but could recover in time to feature in the matchday squad.
Otherwise Whittingham has no new injury or suspension concerns as his side go in search of their first win since October 20.
Strike trio John Akinde, James Keene and Patrick Agyemang will compete for two starting berths in Portsmouth's attack. New signing Akinde was dropped to the bench for Tuesday's 0-0 draw with Hartlepool after making his debut against Bournemouth last weekend and will be hoping to make his return to Whittingham's starting line-up for Carlisle's trip to Fratton Park.
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- Patrick Agyemang