Reading defender Sam Sodje is set to undergo an exploratory operation on his knee.
The 27-year-old has been troubled by a knee problem since arriving from Brentford in July and has only featured once in The Premiership.
The Royals are hoping that surgery will clear the injury up once and for all, although he is likely to need at least a fortnight to recover from the operation.
"He's had persistent swelling on the knee," physio Jon Fearn told the club's official website.
"We'll have a look to see how we can manage it best.
"With an arthroscopy he'll be out for a minimum of two to three weeks, but it's all quite open really."
David Kitson, meanwhile, is a major doubt for Reading's next Premiership clash against Manchester City.
The striker hurt his knee during the opening day win over Middlesbrough and is racing to be fit in time for next Monday's fixture.
"Dave has started running drills but he still has a problem turning in certain directions; the ligament is not strong enough to do everything," explained Fearn.
"He'll have a further injection on Wednesday, and he'll be reintroduced to ball work when he's strong enough and comfortable enough.
"There's a small chance he could play against City but we'd want him to be more advanced than he is at the moment."