[2] A lifelong supporter of Napoli, Gaetano joined the Campania club when he was just eleven years old and dreams of one day becoming their Captain.

While at ASD Future Boys di Cimitile, he along with his older brother were spotted by a Napoli scout, joining their youth system in 2011.

[5] On 12 May 2019, he was called on by Napoli coach Carlo Ancelotti in which he made his first ever Serie A debut in a game against S.P.A.L., which would be marked in tragedy, with his grandmother Carmela dying of a heart attack after a confrontation with neighbours during celebrations.

[6] On 10 December 2019, Gaetano made his first UEFA Champions League debut in a home game against Belgian side Genk which Napoli went on to win 4–0 a progressed to the last 16 of the competition.

[12] On 30 August 2024, the loan was renewed to Cagliari with the obligation to buy set at 6 million euros, upon the occurrence of certain sporting conditions.