Career
His game was characterized by impressive stamina and mobility, and a powerful overhead smash. He reached the semifinals of men"s singles at the All-England Championships on four occasions and was one of only a very few players to beat Rudy Hartono in tournament play during Hartono"s prime (semifinals of 1973 German Open). 1972 Summer Olympics
Johnsson competed in badminton at the 1972 Summer Olympics, as a demonstration sport competition.
In men"s singles, he lost in semifinals against Rudy Hartono, 15-2, 15-4.
In mixed doubles he played with Eva Twedberg, and they were beaten in the first round by Roland Maywald and Brigitte Steden of West Germany.