Whilst Antonio Conte is still keen to add Sandro to his Chelsea squad it is understood that Sandro has no intention of leaving the current Serie A champions.
Since the 26-year-old joined Juventus from Porto in August 2015 he has won successive Serie A and Coppa Italia titles and has underlined his desire to remain a part of Massimiliano Allegri's side.
"Alex Sandro said he wants to stay at Juventus and this is a real big deal. So we automatically rejected the sender's request," said Marotta.
The general director insists the club's current mindset is to not sell their biggest players, but they are open to offers if the player wants a move away.
He added: "As I said before, our will - today - is to not trade any player, but if there are any players who, at some point, ask to be handed over, we will obviously evaluate this opportunity."