As a senior, he contributed to the team winning the 1960 Black College National Championship.
[3] Granger was selected by the Boston Patriots in 26th round (203rd overall) of the 1961 AFL Draft.
In July, he signed as an undrafted free agent with the Dallas Cowboys in the National Football League.
After leaving the National Football League, he was a head coach and general manager of the semi-professional football teams Baton Rouge Red Wings and the Baton Rouge Golden Eagles.
He had a 28–4 winning record and won three Dixie Football League championships in four seasons.