After successfully completing a deal for Lille striker Jonathan David, the Italian club is now focusing on negotiating terms with United for Sancho's transfer.
Manchester United is open to selling Sancho, but is looking for a £25 million fee, which Juventus hopes to reduce by including a player in their offer.
According to reports, Juventus is prepared to include midfielder Douglas Luiz in their proposal to United for Sancho.
Luiz, who joined Juventus a year ago from Aston Villa, has been struggling to settle in Turin and is eager to return to England for the new season.
Sancho, on the other hand, is keen on joining Juventus and has indicated that he is willing to accept a reduction in his United wages to facilitate the transfer.