The South American recently completed an impressive season with the Artemio Franchi outfit, culminating in transfer speculation.
Lucci confirmed that Internazionale and Lazio are firm suitors of the Samba star, however Siena have received any firm bids for the star.
"It's true there are teams who are interested in him. These teams are those mentioned (Inter and Lazio), although currently there are no official offers," said Lucci to Skysports.com.
"Anyway, we will see what happens, but I can say that he will almost certainly leave Siena. This is also in Siena's favour, considering that next season Taddei will be a free agent."
As Taddei has just one year remaining on his contract following an impressive season with Siena the club are likely to cash in now rather than lose him for free next summer.
Roma were recently linked with a move for the Brazilian, but following Fabio Capello exit and their financial worries, it appears their interest has cooled.
