Canaries boss Nigel Worthington told the club's official website: "Darel has broken a bone in his foot and will probably be out for at least six weeks as a result.
"I feel for the lad as he has been very professional in his approach to both training and playing, and has come in a done a good job in the last couple of games."
"It's just one of those unfortunate bits of bad luck that you get in football."