Facundo Valentín Jainikoski is a 18-year-old professional football player from ARG. He currently plays for Argentinos Juniors, wearing the number 48 shirt. He plays primarily as a Forward.

His most recent move was a from AA Argentinos Juniors Juveniles to Argentinos Jrs U20 on 2024-01-01.

In the Argentine Division 1 2026 season, Facundo Valentín Jainikoski scored 0 goals and provided 1 assists across 6 appearances, averaging 0 goals per game with 8 shots attempted and 2 on target.