Luca Pellegrini is on the cusp of completing a move to Juventus after arriving at the club's health centre for a medical on Sunday.
The 20-year-old Roma left-back is expected to sign a five-year deal in a reported €10 million (£9m/$11m) switch that will send Leonardo Spinazzola in the opposite direction.
Pellegrini, an Italy Under-21 international, spent the second half of last season on loan at Cagliari, where he made 12 appearances in Serie A.
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His transfer to Turin will boost Maurizio Sarri's full-back stocks after the new Bianconeri boss opted not to retain Spinazzola, who struggled for first-team opportunities under Massimiliano Allegri last term.