Professional career
Harrison came to the Calgary Stampeders in 1964 as a linebacker, but was converted to tight end . At that position, Harrison became a Western conference all-star 6 times (1965, 1967–1971) and CFL-All Star 3 times (1968, 1969, 1970). In 1968, he led the CFL with 1,306 yards receiving. In 1969 and 1970, Harrison led the Western conference in pass receptions with 68 and 70, respectively, and tied for the lead in 1971 with 70 catches.
Calgary won the 59th Grey Cup of 1971 over the Toronto Argonauts on a wet field.[1][2] Harrison scored the only touchdown for the Stampeders that day, a 14-yard pass from Keeling in a 14–11 victory. The Stampeders also won the 1968 and 1970 Western Finals but lost the 56th Grey Cup to the Ottawa Rough Riders and the 58th Grey Cup to the Montreal Alouettes.