As a senior, he was selected as a first-team All-American by the American Football Coaches Association (AFCA).
After graduating from Michigan, Huff played professional football for the San Francisco 49ers (1972), Edmonton Eskimos (1973), and Charlotte Hornets (1974–1975).
Each of the five Huff sons played football at St. Francis de Sales High School in Toledo.
[2]As a freshman at St. Francis de Sales, Huff was 6 feet, 2 inches tall, weighed 145 pounds, and had no intention to play football.
He liked basketball, but the school's football coach, Dick Mattingly, persuaded Huff's brother to get Marty to try out for the team.
[2][3][4] He played fullback for the St. Francis de Sales and, along with his brother Andy Huff (who later starred for Notre Dame), led the team to a City League championship and a 10–0 record in 1966.
One day in practice I'm playing fullback and, when I go out for a pass, this little linebacker named Dennis Morgan who had forearms like Popeye just about ripped my head off.
[8] In his first game for Michigan, a 31–10 victory over Duke in September 1968, Huff intercepted a pass and returned it 44 yards for a touchdown.
In Schembechler's first game as head coach, Huff returned a blocked punt 31 yards for a touchdown in a 42–14 win against Vanderbilt.
"[2] After the 1969 season, Huff was selected as a first-team All-Big Ten Conference player by the Associated Press.
[15] Huff started all ten games at middle linebacker for the 1970 Michigan Wolverines football team that finished the season with a 9–1 record.
[10] After the 1970 season, Huff was selected as a first-team All-American by the American Football Coaches Association.