Mateo Saja is a 19-year-old professional football player from ARG. He currently plays for International Miami B, wearing the number 80 shirt. He plays primarily as a Forward.

His most recent move was a from Inter Miami CF Academy to International Miami B on 2026-03-13.

In the United States Open Cup 2025 season, Mateo Saja scored 1 goals and provided 0 assists across 2 appearances, averaging 0.5 goals per game with 1 shots attempted and 1 on target.