Grant compiled a record of 158-96-5 in 18 seasons with the Vikings (1967-83, 1985). The team lost in Super Bowls IV, VIII, IX and XI.
He also went 102-56-2 in 10 seasons as the head coach of the Canadian Football League's Winnipeg Blue Bombers (1957-66), capturing four Grey Cup championships.
Grant was inducted into the Canadian Football Hall of Fame in 1983 and the Pro Football Hall of Fame in 1994, the first person to be enshrined in both.
Grant was named the CFL Coach of the Year in 1965 and the NFL Coach of the Year in 1969.