Nottingham Forest are battling to secure Jack Hunt to a permanent deal from Crystal Palace.
The Nottingham Post says Crystal Palace have doubled their price-tag on the player.
Forest boss Stuart Pearce says Palace's valuation on the man they signed for just over £2m a year ago will now make any permanent switch impossible.
"We had agreed a fee with Crystal Palace, at the back end of the window when it was close to shutting. We could not agree terms with the player, at the time," said Pearce. "Subsequently we have agreed everything with the player, when it comes to wages and such like, and we again matched Palace's initial price, which they had put on the lad's head.
"But when we went back to them to do the deal, over the past week, that price had apparently doubled.
"I have explained that to Jack, because he is desperate to come here and join us. He is disappointed. He feels the support we have given him has been fantastic, he is enjoying his football.
"We are ready to do the deal, but at the level that Palace have quoted us now, we cannot take that forward."
