[1] Leggett's career in professional football began as a first-round draft pick of the Bears in 1957 and spanned 11 years from 1957 to 1968.

He was part of the famed "Monsters of the Midway" defense that led the Bears to the 1963 NFL championship.

Toward the end of his career, journeyman Leggett played 20 games in 1967 and 1968 for the expansion New Orleans Saints franchise.

While statistics on sacks were not recorded back then, www.pro-football-reference.com credits Leggett with 16 fumble recoveries, 1 safety and 1 interception.

Leggett helped shape the careers of Howie Long with the Raiders and Michael Strahan with the New York Giants.