Freddie Joe Nunn was selected 18th overall from Ole Miss in the 1985 NFL Draft, bringing exceptional speed and athletic flexibility to St. Louis. During his nine seasons with the Cardinals, he was frequently moved between a traditional 4-3 defensive end and a stand-up outside linebacker. This constant position switching, along with playing for struggling teams in St. Louis and Phoenix, kept him out of the national spotlight. However, when allowed to pursue pass rushes, Nunn proved to be extremely effective.

Nunn demonstrated exceptional quickness right from the start, often leveraging a fast first step to consistently beat boundary tackles and turn the corner. Whether he was positioned with his hand in the dirt or in space, his pure speed enabled him to make impactful tackles early, often before the offensive pockets were fully formed.

Nunn reached his peak in 1988 as the franchise moved across the country. During a season focused solely on rushing the quarterback, he achieved a career-high 14.0 sacks in Arizona's first desert season. He then continued with two solid years, recording 11.0 sacks in 1989 and 9.5 in 1990, cementing his role as the defense’s main disruptor.

Despite off-field legal distractions and a roster that struggled to contend in the NFC East, Nunn’s back-to-back-to-back sack totals anchored the franchise's front seven through the late 1980s and early 1990s.

When Nunn departed for Indianapolis in 1994, he held the Cardinals' official franchise record with 66.5 career sacks—a mark that stood for nearly three decades before Chandler Jones finally surpassed it in 2021.