A graduate of the University of Toronto, Radzick first played football with the Toronto Balmy Beach Beachers of the Ontario Rugby Football Union. In 1958 he signed with the Calgary Stampeders[3] where he won the Dr. Beattie Martin Trophy for best Canadian rookie in the west (with 1 interception and 2 fumble recoveries.) In 1960 he returned to Toronto, starting 5 seasons with the Argonauts; 66 regular season games and 5 playoff games.[4] He finished his career playing 6 games with the Hamilton Tiger-Cats in 1965 (the year they won the Grey Cup.)[5] As an Argonaut, Radzick missed only one game from 1961 to 1964.[6]
He died in 2005 in Toronto at the age of 69.[7]