Isaac Jefferies is a 22-year-old professional football player from ENG. He currently plays for The New Saints, wearing the number 37 shirt. He plays primarily as a Forward. His current market value is estimated at 75K €.

His most recent move was a from Cardiff City U21 to The New Saints on 2026-01-22.

In the Welsh Premier League 2025-2026 season, Isaac Jefferies scored 2 goals and provided 0 assists across 16 appearances, averaging 0.1 goals per game with 0 shots attempted and 0 on target.