And there is a strong possibility the Posh boss may name the same side that started the 3-1 home win over Huddersfield on Tuesday night.
Tommy Rowe remains doubtful with an ankle injury so Kgosi Nthle, who scored his first goal for the club against the Terriers, is expected to continue at left wing-back.
Peter Grant and Dave Hibbert are Ferguson's only other absentees.
Grant is set to undergo a knee operation, and is expected to spend an extended spell on the sidelines. Hibbert, meanwhile, is closing in on a first-team return after almost two years out with a serious knee injury.
Victory over Huddersfield brought Peterborough their first home points of the season. Posh have not won successive Championship games at London Road since March.
Derby's injury problems appear to be easing as Gareth Roberts, Jamie Ward and Jeff Hendrick could all be back in contention, but goalkeeper Frank Fielding (groin) is still a week away from making a return.
Roberts, 34, played as an over-age member of the Under-21 squad on Wednesday after a hamstring injury.
He was an unused substitute during the previous night's 2-1 victory at Ipswich, where James O'Connor again filled in at left-back.
Ward has missed the last four games with a hamstring problem but the striker is due to train on Friday.
If he comes through unscathed, he will be in the squad to face Posh.
Midfielder Hendrick was absent in midweek after suffering an ankle injury in the home draw with Blackburn.