Spurs chief scout Ian Broomfield is in Brazil, sparking talk of a move for Damiao.
Damiao said: "I can't say much, it depends on Internacional too. Of course my wish is to stay, but there comes a time when you need to go, but I don't know whether it is that time. If an offer arrives, then we will decide."
Internacional boss Dorival Junior does not want to see Damiao leave but admitted: "We have to get ready. There is nothing concrete yet but it is natural that several players draw attention.
"We will try to anticipate any loss by signing another player to minimise any damage to the team."