Centre-back Del Fabro is familiar with the Scottish game having spent the 2019/20 season on loan at Kilmarnock.
Italian sports journalist Nicolò Schira, who has a focus on the transfer market, has reported Hearts have approached Juventus and opened talks over the transfer of the 26-year-old.
However, the Evening News has since learned that Hearts are not actively pursuing a move for the former Leeds, Ascoli and Pisa player.
Del Fabro, who was studying sports science during his time in Ayrshire, was a popular figure at Rugby Park, playing 24 times for the side and scoring his only goal against Hibs.
Despite being with the Italian giants since 2017, he has yet to feature due to numerous loans and turning out for the club's Under-23 side which plays in Serie C.