Kal Naismith has not been included in Pompey's squad for their trip to Bury today.
The Scot has not been selected in Kenny Jackett's match-day squad at Gigg Lane, with Connor Ronan replacing him.
The Blues boss has made four changes from last Saturday's 1-0 defeat to Charlton.
Christian Burgess partners Matt Clarke at centre-back, with Jack Whatmough out with a groin injury.
Meanwhile, Stuart O'Keefe and Oli Hawkins have been handed starts in place of Gareth Evans and Brandon Haunstrup.
Pompey: McGee, Thompson, Burgess, Clarke, Donohue, Lowe, Close, O'Keefe, Ronan, Hawkins, Pitman.
Subs: Bass, Deslandes, Haunstrup, May, Kennedy, Evans, Chaplin.