Third-choice goalkeeper Stuart Taylor will again take his place between the posts for the visit of former club Aston Villa.
Taylor made his first Barclays Premier League appearance since 2008 in last weekend's 3-1 defeat at Everton after Adam Federici sprained an ankle.
Federici is still at least a week away while Jimmy Kebe is also a doubt for the relegation clash.
Pavel Pogrebnyak serves the second of his three-game ban while fellow striker Jason Roberts (hip) and goalkeeper Alex McCarthy (shoulder) are still absent.
Aston Villa midfielder Fabian Delph has been ruled out of tomorrow's Premier League relegation battle at Reading through suspension.
Delph serves a two-game ban after collecting his 10th yellow card of the campaign during Monday's 1-0 home defeat against Manchester City.
Villa boss Paul Lambert is hopeful captain Ron Vlaar will recover from the calf injury that has ruled him out of the last two games, but striker Darren Bent (foot) is again set to miss out.
Provisional SquadsReading: Taylor, Harte, Mariappa, Pearce, Kelly, McAnuff, McCleary, Leigertwood, Kebe, Blackman, Le Fondre, Akpan, Robson-Kanu, Hunt, Morrison, Karacan, Shorey.
Aston Villa: Guzan, Given, Marshall, Lowton, Vlaar, Clark, Lichaj, Stevens, Baker, Bennett, El Ahmadi, Sylla, Ireland, Westwood, Dawkins, N'Zogbia, Bannan, Holman, Benteke, Agbonlahor, Bent, Bowery, Weimann.