[2] In 1997, he began his professional career in 1997, with expansion franchise Toronto Lynx of the USL A-League.
[3][4] He assisted the club in qualifying for the post season for the first time in the franchise's history by finishing 4th in the Northeastern division.
Johnson played with the Canada men's national under-17 soccer team, and made his debut on November 2, 1994 against Nicaragua at the 1994 CONCACAF U-17 Tournament.
[9] In 1997, he was called by Bruce Twamley to the Canada men's national under-20 soccer team camp in British Columbia.
[10] He was selected for the Canada U20 team that won the gold medal in the 1997 Jeux de la Francophonie.