Charlton midfielder Bradley Pritchard faces a spell on the sidelines after breaking his foot.
The 25-year-old, who has made five appearances this season after joining from non-league Hayes & Yeading, has fractured a metatarsal.
"We envisage missing him for a number of weeks," manager Chris Powell confirmed.
"It's a real shame for Bradley. He's been outstanding since he walked through the door and he has a great attitude for someone who has been in full-time football for only three months.
"He's one of those people who wants to grasp his opportunity. But he will come again and I'm sure he will have a part to play this season."
Meanwhile, young Charlton goalkeeper Nick Pope has extended his loan spell at Harrow Borough for another month.
Copyright (c) PA Sport 2009, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: http://gms.to/writeforgms