QPR boss Neil Warnock will be without Bradley Orr for the trip to Portsmouth.
The full-back was given a straight red card in the Hoops 3-1 win over Reading for a rash challenge on Royals midfielder Hal Robson Kanu and will serve a three-match ban.
Clint Hill, who was rested at the weekend with knocks to his knee and ankle, is expected to return to the starting line-up in his usual slot at left-back.
On-loan Kyle Walker will move across the back four to a more familiar stint at right-back.
Heidar Helguson could return to the squad from a shoulder problem that has kept him out of the last two games but Georgios Tofas looks doubtful with a hamstring injury and Akos Buzsaky, Peter Ramage and Lee Cook all remain sidelined.