Nathan Thompson goes straight back into the Pompey starting line-up to face Oxford this afternoon.
He returns from a four-match ban and replaces Brandon Haunstrup in the only change from the side that won at Oldham last week.
Gareth Evans is named among the substitutes after recovering from a hamstring injury.
Pompey: McGee; Walkes, Whatmough, Clarke, Donohue; Thompson; Lowe, Close, Ronan, Naismith; Pitman (c)
Subs: Bass, Burgess, Haunstrup, May, Evans, Kennedy, Chaplin