Roberts and Evans returnGary Roberts returns to the Pompey side at Stevenage this afternoon.
The midfielder has recovered from a hamstring injury and is thrown straight back into the starting 11.
Gareth Evans also comes in, with Conor Chaplin and Kal Naismith dropping to the bench.
Michael Smith is named among the substitutes after missing out recently with a calf problem.
Pompey: Fulton; Davies, Burgess, Webster, Stevens; Hollands, Doyle (c); Evans, Roberts, Bennett; McNulty
Subs: Bass, Freeman, Clarke, Barton, Naismith, Chaplin, Smith