Here are some of his notable works:
Sports Fiction:
* The Quarterback (1963): A classic football novel about a young quarterback's journey to the NFL.
* The Great American Football Book (1969): An anthology of classic football stories, including Dygard's own.
* The All-American (1973): A novel about a high school football star facing pressure and ethical dilemmas.
* The Running Back (1975): A sequel to "The Quarterback," featuring the next generation of football players.
* The Winning Season (1979): A novel about a struggling high school football team finding success.
Mysteries:
* The Killing Game (1964): A suspense novel about a detective investigating a murder in a small town.
* The Deadliest Game (1967): A thriller featuring a private detective caught in a deadly game.
* The Man Who Died Twice (1970): A mystery novel about a man who is framed for murder.
Other Works:
* The Big League (1971): A novel about the world of professional baseball.
* The Man Who Couldn't Sleep (1976): A psychological thriller.
* The Boy Who Could Fly (1979): A children's book about a young boy with the ability to fly.
Legacy:
Dygard's writing was known for its realistic portrayal of sports and its exciting narratives. He was a popular author who enjoyed a loyal following among fans of sports fiction and mysteries.