The Brazilian is in the final year of his contract in Florence, which is thought to have alerted Italian champions Juve.
However, the 25-year-old has claimed that he has no intention of angering the Fiorentina faithful by joining a Serie A rival.
"The club have been asking me to renew my contract since the end of last season but we haven't found a deal. My first choice is Fiorentina as I'm happy in Florence and want to continue here," he told ESPN Brazil.
"The Juventus interest? I don't know anything and think these are just rumours. I don't think I would go to Juventus. I would never give that disappointment to our fans."
Neto joined La Viola from Atletico Paranaense back in 2011.