Reading will assess midfielders Liam Kelly and John Swift ahead of the Carabao Cup tie against Millwall.
Both players came off during the first half of Saturday's 1-0 Sky Bet Championship defeat at Preston, Kelly after taking an early kick to his leg and Swift with a hamstring problem.
Midfielder Joey van den Berg remains a doubt having not featured in the squad at the weekend, when Leandro Bacuna made his debut after signing from Aston Villa.
Iceland forward Jon Dadi Bodvarsson has been carrying a knee problem, while striker Yann Kermorgant continues to recover from hip and groin surgery.
Millwall boss Neil Harris will make changes for the trip to the Madejski Stadium.
Harris has a fully-fit squad to choose from following the goalless draw with Bristol City on Saturday.
Defender Jake Cooper is in line for a run-out against the club he left this summer.
Mahlon Romeo and Ben Thompson should be added to the squad while Tom Elliott, who has scored three goals in five games, could start in attack alongside Fred Onyedinma.