The agent of Porto striker Hulk believes that his client's 100 million euro release clause is not unreasonable.
The Brazil international has been strongly linked with a new challenge since the summer, with Paris Saint-Germain and Chelsea understood to be his primary suitors.
Porto is holding out for the figure in Hulk's buy-out clause, which would break the world transfer record, surpassing the 94 million euros which Real Madrid splashed out for Cristiano Ronaldo in 2009.
Still, Teodoro Fonseca believes that his client's price-tag is not too high, telling Radio Renascenca: "Hulk is one of the best players in the world and he is being followed by big clubs in Europe. One hundred million euros is not such a high figure. Every European club knows that the money spent on him would be compensated by his talent.
"A Chinese club is already paying 10 million euros per annum to an athlete and some Russian clubs are already paying 20 million euros."