He is on the books of Belgrano U20 and wears shirt number 9. His main role on the pitch is Forward.

During the CONMEBOL U20 Copa Libertadores 2025 campaign, Fabricio Ezequiel Mendieta made 2 appearances, scoring 2 goals and adding 0 assists. He averaged 1 goals per match from 4 shots, with 3 on target.