Team news for televised contest
Curtis Main makes his first league start in more than a year at Gillingham.
The striker replaces the injured Brett Pitman in one of two changes from side that faced Oldham in the league last week.
Kyle Bennett also comes in for Drew Talbot, with Oliver Hawkins continuing to deputise in the centre of defence.
Nathan Thompson is declared fit to feature after going off against Oldham with concussion.
Pompey: McGee; Thompson, Hawkins, Clarke, Donohue; Close, O'Keefe (c); Lowe, Bennett, Kennedy; Main
Subs: Bass, Talbot, Haunstrup, Oxlade-Chamberlain, Rose, Evans, Naismith