Tottenham are interested in Deportivo La Coruna defender Fabricio Coloccini.
Agent Marcelo Lombilla revealed they're ready for transfer talks after being told by Deportivo president, Augusto Lendoiro, that he would only enter negotiations if the offers were concrete.
"Now I have to wait and see if the interest of any of the clubs is confirmed and put into writing and, if that happens, I will present them to the president.
"It will have to something concrete though. We cannot deal with suppositions, only with reality."
While Olympiacos have made an offer of around £2m, Zaragoza are prepared to go higher while Tottenham have yet to make a firm proposal.