The young midfielder is believed to be on the Bianconeri's shortlist, but the Rio de Janeiro-based club has affirmed that no formal bids have been tabled so far
Brazilian sources claim that Fifa agent Mario Miele was in Rio de Janeiro earlier in the week in the company of a representative from the Italian club to initiate talks for the 19-year-old.
Zinho claims that Flamengo are ready to listen to offers for Thomas, but insisted that he has not yet heard from the Serie A champions.
"No official offer has so far arrived from Juventus for Thomas," he told Lancenet. "If it arrives, we will discuss between all involved parties what will be done."
Thomas, a Brazil Under-20 international, has an Italian passport after a short stint at Roma prior to his move to Flamengo in 2008.