The striker has missed the last two games with a knee injury which is almost certain to keep him on the sidelines.
However, on-loan Reading striker Nicholas Bignall has been passed fit after a hamstring problem.
Defender Johnny Mullins and midfielder David Poole are also available after illness but County head to Adams Park on the back of a dismal run of six successive defeats in League One.
They reside in the drop zone along with Wycombe but Ablett believes it is only a matter of time before their luck starts to turn.
He said: “The players have to remain full of self-belief.”