Career
While preparing for the 1958 World Championships, Hyvärinen fell and broke his hip, which resulted in an early retirement in November 1957. From 1960 to 1964 he worked as the head coach of the Finnish ski jumping team
While preparing for the 1958 World Championships, Hyvärinen fell and broke his hip, which resulted in an early retirement in November 1957. From 1960 to 1964 he worked as the head coach of the Finnish ski jumping team