Agents for Leeds United winger Raphinha are talking up the prospect of a January sale.
Currently valued at £28.8m, according to Transfermarkt, Raphinha's agent has been left puzzled at this figure.
Deco, the former Barcelona midfielder who now represents Raphinha, said: “I don't know how they do it. To be honest, I don't understand Transfermarkt's evaluations.
“I think now it should go up," he told UOL.
Brazilian agent Eduardo Uram has also weighed in on the debate, stating: “I think today he's worth more than €32m (£28.8m).
"What will determine the price is the level of the club that signs him. If it's Manchester United, City, Liverpool, Chelsea, the price could reach around €60m (£50.6m). What determines the price of a player is the market he hits."