Throughout his career, Johnston has played for several clubs on loan deals to gain experience and improve his game. He has had stints at lower league clubs such as Brentford, Rotherham United, and Portsmouth before returning to Tottenham Hotspur.
Throughout his career, Johnston has played for several clubs on loan deals to gain experience and improve his game. He has had stints at lower league clubs such as Brentford, Rotherham United, and Portsmouth before returning to Tottenham Hotspur.