Saul attended Butler Senior High School, where he played football, basketball and baseball.
On September 7, 1964, he was traded along with rookie halfback Marv Woodson to the Pittsburgh Steelers, in exchange for placekicker Lou Michaels and a third round pick (#36-Glenn Ressler).
[2] In 1964, the Steelers acquired Saul after starter Myron Pottios suffered a broken right arm in the last preseason game.
On December 10, 1967, in the contest against the Washington Redskins, he became the first player to wear a wireless microphone during an NFL game.
On July 28, 1969, he was traded to the Dallas Cowboys, in exchange for an undisclosed future draft choice (not exercised).
[6] On September 4, the New Orleans Saints acquired his rights from the Cowboys, in exchange for an undisclosed amount of cash.