The Bianconeri had made a €4.5 million bid for the youngster, but the club's president believes that the player could be worth far more by current market standardsBotafogo president Mauricio Assumpcao has confirmed that the club have rejected a €4.5 million offer from Juventus for young defender Doria.
The 18-year-old has made 17 appearances in the Brasileiro this season, scoring one goal, and the Fogao chief believes his side can demand a higher transfer fee.
"For €4.5m, he won't leave. We've already said no to that," he told Radio Globo.
"But I don't know - the transfer market is crazy. There are players out there being sold for €100m."
Botafogo currently sit in fifth place in the Brasileiro, 23 points behind runaway leaders Fluminense.