Agger is struggling with a calf injury and underwent scans at a specialist earlier this week.
“Agger is long-term. They can’t put a date on it,” said Hodgson. “So it could be very long-term.
“At the moment he can’t train, he has just got to rest and wait for the next time he goes to see the specialist again.
“They are very anxious that bone doesn’t form. It is a calcification issue and training would certainly accelerate the calcification.
“Now they have to wait and hope the body breaks down the calcifying elements before he can even think about training again.”