Juventus and Inter are two of Italy's fiercest rivals, and after Juve dominated the league in recent years, Inter are now making a resurgence and are set to end the Bianconeri's Serie A dominance.
The two sides are now in a deadlock to try and persuade Roma to sign their centre-back Mancini, who has been remarkable for the club from the capital over the last two seasons.
According to reports from La Repubblica (via TuttoJuve), both Juventus and Inter are interested in signing Mancini.
Mancini rose to prominence after a great time at Atalanta under the management of Gian Piero Gasperini, earning him a loan deal to Roma that was then made permanent for €15 million.
Since then, the 24-year-old Italian defender has become an integral part of Paulo Fonseca's side, playing on the right side of a three-at-the-back defence on plenty of occasions.
Whilst both Inter and Juventus are very interested in signing Mancini, the report adds that Roma are not keen on selling the young centre-back, and they are set to offer him a new contract, with his current one expiring in the summer of 2024.
If Roma do sell Mancini, Atalanta will get a substantial part of the fee, with a 10 per cent sell-on fee being included in the deal in 2019.
Mancini has proven to be an astute defender so far this season, making 23 Serie A appearances so far, also racking up an impressive tally of 4 goals, with him having the most headed goals (4) in Serie A this season.