David Moberg Karlsson could be on his way from Sunderland.
Moberg Karlsson's agent Per Jonsson says Sunderland will have to accept a loss on the 20-year-old if they are looking to move him on.
He said: "What David wants is to find a club who would see him as the offensive player he is.
"The problem lies in that Sunderland must take a loss. They do not want to sell him out.
"Of course he is expensive. Exactly what he is worth, I would not go into.
"We could go for a loan deal, but we are not so keen on it."
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