James worry for Orient
Leyton Orient will check on Lloyd James ahead of the visit of Sheffield United.
Midfielder James suffered a calf strain during Tuesday night's 2-2 draw at Bristol City and was replaced by Marvin Bartley.
Burnley loanee Bartley could get the nod if James is ruled out although Josh Wright, who is still awaiting his full debut following his recent loan switch from Millwall, provides another option.
Boss Russell Slade will definitely have to make a change on the bench after striker Jayden Stockley was recalled from his loan spell by Bournemouth.
Sheffield United defender Harry Maguire returns to contention following suspension.
Maguire sat out the midweek draw with Walsall after reaching five yellow cards and boss Nigel Clough must decide whether to recall him or stick with Matt Hill, who stepped into fill the gap on Tuesday night.
Midfielder Simon Lappin is doubtful due to an ankle injury sustained against Walsall, but winger Febian Brandy could return following his four-game ban and Ryan Flynn is expected to shake off a foot injury.
Chris Porter partnered Shaun Miller up front in midweek, but Lyle Taylor, Marlon King and Jose Baxter are all pushing for recalls.