Portsmouth will be without Ronan Curtis for the visit of Oxford.
Curtis picked up his 10th booking of the season in Saturday’s 3-3 draw with Fleetwood and must now sit out two games.
Defender Sean Raggett should be fit, despite taking a nasty fall in that game.
Shaun Williams (back) and Kieron Freeman (ankle) continue to work their way back towards full fitness while Michael Jacobs has a knee injury.
Oxford boss Karl Robinson is contemplating starting Marcus Browne.
The Middlesbrough loanee made his long-awaited debut in Saturday’s win over Cambridge when he came off the bench and could be handed a start.
James Henry could also start after returning off the bench following a calf injury.
Robinson said his side are “looking at different options” in a bid to combat Pompey’s threats.
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