Reading will be without Brian Howard until late January after the midfielder underwent surgery on a broken jaw.
Howard was injured in the first half of last Saturday's 2-1 defeat at Derby County.
"He had an operation, which went well, and now he's in a four or five-week recovery period," explained manager Brendan Rodgers.
"We just have to monitor him for the moment, for the first few weeks he will only be able to do non-contact stuff.
"If it was up to him he'd be back training by the end of this week, but we know you have to be careful with these things."