Career
A Leongatha recruit, Johnston appeared only sporadically for Hawthorn, his biggest run in the team coming late in the 1992 season when he made four appearances. His best game was his American Federation of Labor-Congress debut, against the Brisbane Bears at Princes Park, where he kicked two goals and had 20 disposals. Johnston went to Footscray via the 1995 Pre-Season Draft and played two senior games for his new club in 1995.