The Blues have a plethora of injury problems and recalled the 21-year-old forward to boost numbers ahead of their trip to Barnsley.
Jervis should be replaced by Paul Benson in the starting line-up. The striker missed the goalless draw against Preston and was expected to return at the weekend but the match at Hartlepool was postponed due to a waterlogged pitch.
With Benson fit, caretaker boss Guy Whittingham has a fully-fit squad to choose from as Pompey look to end their run of 10 matches without a win.
The Fratton Park club are currently in the relegation zone and have a 10-point deduction looming.
