Troilo joined Parma from Belgrano in 2025 and endured a slow start before growing into the Italian top flight, making 21 Serie A appearances and starting each of the club's final seven league games as Parma secured survival.
The 22-year-old effectively replicated the impact of Giovanni Leoni, ensuring Parma did not feel the Italian defender's absence after his move to Liverpool last summer.
Brentford have also been credited with interest in Troilo, but reports suggest a move to either Fulham or Sunderland looks the more likely outcome this summer.
According to ParmaLive, it was specifically Troilo's performances in the second half of last season that attracted the strongest interest from multiple clubs.
Fulham and Sunderland are both said to be ready to invest in the defender and have been impressed by his skillset, with the pair currently leading the race for his signature. Parma are reported to be confident in his long-term potential.
Ideally, Parma would prefer to keep hold of Troilo, but the financial realities of Italian football mean the club would be willing to accept around €30m for his services, a figure that could potentially come down further depending on how negotiations develop.
Troilo's emergence represents a significant return on a relatively modest initial investment from Belgrano, with the defender having taken time to adapt to Italian football before establishing himself as a key figure in Parma's defensive structure during the closing stages of the campaign.
Whichever of Fulham or Sunderland ultimately wins the race for his signature, both clubs would be adding a young centre-back with Serie A experience and a proven ability to perform under pressure in matches that carried direct relegation consequences, qualities that should translate reasonably well to the demands of Premier League football.