The Internacional has recently been linked with the likes of Liverpool Chelsea, Arsenal, AC Milan, Tottenham, Shakhtar Donetsk, Dnipro and Dynamo Kiev.
Damiao signed a new long-term contract with Internacional in the summer, but he could end up leaving the club in January.
“The big clubs wait to take player like him, to be sure that a player does well, that he can prove himself,” the Sivori & Asociados spokesman told Sky Italia.
“In January, Damiao would cost less than now, but was still considered a risk.”
“Now Damiao has important requests: there is a good offer of Tottenham, one from Arsenal and even some Spanish clubs are sounding out Internacional,” the spokesman said.
“It’s normal: he’s a striker born in 1989, he attracts a lot interest. It should be considered, however, that he has the non-EU passport.”