He currently plays for Curico Unido, wearing the number 24 shirt. He plays primarily as a Forward. His current market value is estimated at 200K €.

His most recent move was a from Curicó Unido U21 to Curico Unido on 2024-01-01.

In the CHI Liga de Ascenso 2025 season, Williams Genaro Sáez Leiva scored 0 goals and provided 0 assists across 23 appearances, averaging 0 goals per game with 0 shots attempted and 0 on target.