Sean Raggett makes his 100th appearance for Pompey in this afternoon's League One match at Charlton.
Danny Cowley sticks with the same side that secured a dramatic home draw with Plymouth earlier in the week.
It means that Raggett is likely to be flanked by Shaun Williams and Kieron Freeman in a three-man back-line.
Pompey: Bazunu; Freeman, Raggett, Williams; Romeo, Tunnicliffe, Morrell, Brown (c); Harness; Curtis, Marquis
Subs: Bass, Downing, Thompson, Azeez, Hackett-Fairchild, Harrison, Hirst