The Cardinals’ history of defensive backs is legendary, and in spring 2011, they welcomed another top talent into that legacy. Patrick Peterson, an LSU graduate and winner of the Bednarik and Thorpe Awards, entered the NFL as an exceptionally athletic, high-profile prospect. Chosen fifth overall in the 2011 draft, Peterson combined impressive size, blazing speed, and smooth hips, quickly making a significant impact as a standout defender in Arizona.

What set him apart was his skill to move across the field in true man-to-man coverage, shadowing the main receiver no matter their alignment. Peterson exhibited great physical confidence, using his length to disrupt routes at the line of scrimmage and boasting elite recovery speed to close any vertical gap. Beyond his lockdown abilities, his open-field awareness and rapid, fluid movements made him a dynamic, game-changing asset in the kicking game.

His rookie 2011 season was one of the most explosive in franchise history, especially on special teams. He started all 16 games at right cornerback and dominated return coverage. Peterson tied the NFL record with 4 punt return TDs, including a stunning 99-yard game-winner in overtime against St. Louis. He led the league with 699 punt return yards, earned his first Pro Bowl and First-Team All-Pro honors as a return specialist, and also recorded two interceptions. His four punt return TDs in 2011 set an NFL record for rookies and made him the only rookie in league history to achieve this.

In his sophomore 2012 season, Peterson made the permanent shift to the left cornerback spot, fully taking on the responsibility of locking down the opposition's top target. He responded with 7 interceptions and 5 fumble recoveries, earning his second Pro Bowl nod. That marked the start of an incredible run of individual consistency. Over his first eight seasons in Arizona (2011–2018), Peterson was voted to eight consecutive Pro Bowls, joining an elite group of defensive players in NFL history to accomplish that feat to open a career.

During Bruce Arians' competitive era with the Cardinals, Peterson led defenses that propelled deep playoff runs. His outstanding coverage led to First-Team All-Pro selections in 2013 and 2015, playing a key role in reaching the 2015 NFC Championship. Quarterbacks often avoided targeting his side, reducing his target count and enabling the Cardinals to allocate additional safety support elsewhere.

His decade-long run in Arizona drew to a close following the 2020 campaign, after which he signed with Minnesota in free agency. Across his ten seasons in the desert, Peterson suited up for 154 games, accumulating 28 interceptions, 91 pass deflections, 499 tackles, and 4 return touchdowns.

Aeneas Williams did not play competitive football during his first two years at Southern University. He only joined the team as a junior, but by his senior year, he led the nation in interceptions and quickly attracted the attention of the Phoenix Cardinals, who picked him in the third round of the 1991 NFL Draft. What began as a low-profile pick developed into an impressive fourteen-year career—marked by his exceptional coverage skills and legendary ball-hawking instincts—establishing him as one of the top boundary defenders of his time.

Williams relied not on sheer size to challenge wide receivers but on sharp route recognition and spatial advantage. He excelled at mirroring top wideouts closely, maintaining smooth footwork during his backpedal, and then using a powerful burst to intercept passes. His natural hands turned contested throws into turnovers, complemented by superb open-field tackling. His quick diagnostic skills kept him a constant scoring threat following turnovers, with an impressive 9 career interception return touchdowns—tying him for second in NFL history at retirement.

Williams's debut in the professional ranks in 1991 instantly transformed his scouting profile. He secured the starting right cornerback position right after training camp, delivering an exceptional rookie season by recording a league-high 6 interceptions, earning PFWA All-Rookie honors, and placing third in the AP NFL Defensive Rookie of the Year voting. When he moved to the left cornerback position under defensive coordinator Fritz Shurmur, his dominance over the boundary became even more evident. In 1994, Williams completely shut down opposing passing attacks, leading the NFL with a career-best 9 interceptions and earning his first Pro Bowl selection.

That exceptional campaign sparked a remarkable six-year period of dominance in the desert. From 1994 to 1999, Williams earned six straight Pro Bowl selections as the key defensive stalwart for the rebuilding Cardinals. His outstanding performance was clearly demonstrated in 1995 when he made 6 interceptions—returning two for touchdowns—earning his first first-team All-Pro honor. He maintained that elite coverage level in 1997, again intercepting 6 passes and earning his second consensus first-team All-Pro selection. Williams proved himself as the crucial game-changer during the 1998 postseason, intercepting two passes in a thrilling wild-card upset against the Dallas Cowboys, leading the franchise to its first playoff win in fifty years.

As the Cardinals embarked on a major rebuilding phase at the start of the 2000s, the experienced boundary cornerstone was traded to the St. Louis Rams in spring 2001. Williams smoothly brought his veteran leadership to the Rams' secondary, eventually transitioning to safety later on. He received two more Pro Bowl selections and a first-team All-Pro honor in St. Louis, playing a crucial role in leading the Rams to Super Bowl XXXVI. After retiring following the 2004 season, he totaled 55 career interceptions, of which 44 were while he played for the Cardinals.

Williams was named as a premier boundary selection to the NFL 1990s All-Decade Team, and his eternal connection to football immortality was finalized in 2014 when he was enshrined in the Pro Football Hall of Fame.  The Cardinals honored him six years earlier by selecting Williams for their Ring of Honor.

The mid-1970s revival of modern Cardinals football was built on strong offensive line play, led by a legendary technician who became the benchmark for excellence. Dan Dierdorf, a consensus All-American at Michigan under Bo Schembechler, brought exceptional size and agility to the NFL when the St. Louis Cardinals took him in the second round of the 1971 draft. He then spent an impressive thirteen seasons with the team, combining physical prowess with technical mastery to become the top offensive tackle of his era.

His game showcased expert pass protection and run-blocking leverage, resembling a masterclass. Standing 6’3" and weighing 275 pounds, Dierdorf had a strong foundation, a powerful initial punch, and excellent lateral mirroring. Although he demonstrated versatility at guard and left tackle early on, his true breakthrough came in 1974 during his fourth season. After permanently moving to right tackle, Dierdorf became nearly unstoppable, earning his first Pro Bowl and second-team All-Pro honors while contributing to Don Coryell’s dynamic "Air Coryell" offense.

That breakout campaign sparked a five-year period of unparalleled individual dominance. Between 1974 and 1978, Dierdorf was recognized as the top tackle in the league, earning five straight Pro Bowl selections and four consecutive first-team All-Pro honors. He led a legendary St. Louis offensive line—alongside Conrad Dobler and Tom Banks—that consistently shut down the most formidable pass rushes of that era. His peak performance came in the 1975 season, when the Cardinals’ offensive line set an NFL record by allowing just eight sacks in 14 regular-season games.

Over the next two years, Dierdorf's dominance became nearly legendary. During the 1976 and 1977 seasons, he completely neutralized opposing pass rushers, going two years without allowing a single sack. His perfect mirroring technique was clearly shown in internal coaching footage, which displayed a player consistently winning crucial battles against top-tier edge rushers without needing help from tight ends. Due to his exceptional performance, the NFL Players Association named Dierdorf the NFL Offensive Lineman of the Year for three straight years (1976–1978).  Dierdorf's legendary streak of allowing no sacks over the 1976 and 1977 seasons remains the gold standard for pass-blocking efficiency in franchise history.

Even when a severe knee injury sidelined him for most of the 1979 season, the veteran anchor displayed immense resilience. He authored a brilliant individual bounce-back during the 1980 campaign, returning to full strength to start all 16 games at right tackle, earning his sixth career Pro Bowl invitation and his fifth first-team All-Pro nod. Ever the consummate professional, Dierdorf willingly shifted to the center position for his final two years in 1982 and 1983, stabilizing an evolving interior front with his high-level diagnostic intelligence. The historic marathon in St. Louis reached its final punctuation following the 1983 campaign, when the veteran leader hung up his cleats after 160 regular-season games.

Dierdorf was named to the prestigious NFL 1970s All-Decade Team, and his journey came full circle in 1996 when the Canton, Ohio native was fittingly enshrined into the Pro Football Hall of Fame right in his own hometown. The Cardinals also honored Dierdorf in 2006 as a member of the inaugural group in their Ring of Honor. 

As Larry Wilson’s legendary career neared its end in the late 1960s, the St. Louis Cardinals’ secondary urgently needed a new core leader. They found their solution in spring 1969, effectively bridging generations. Roger Wehrli, a consensus All-American and Big Eight Defensive Player of the Year from the University of Missouri, completely changed the way individual pass coverage was viewed. Initially expected to be picked in the second round by some analysts, he defied scouting expectations at the combine by running a rapid 4.5-second 40-yard dash. This exceptional display of speed catapulted him into the first round as the 19th overall pick—a choice that quickly silenced critics and redefined NFL passing strategies for the next fourteen years.

Wehrli was an outstanding fluid mover, combining extraordinary recovery speed with a PhD in spatial trail technique. Unlike the physical, bump-and-run cornerbacks of his time who depended on boundary positioning, he demonstrated a highly poised diagnostic ability, matching the top route runners without giving up cushion. His quick closing burst enabled him to undercut routes with precision, turning deep threats into dead zones. His technical discipline was enhanced by excellent ball-tracking skills, making him a prolific playmaker who collected loose footballs, with 40 career interceptions and 22 fumble recoveries. Roger Staubach famously called Wehrli a "shutdown corner,” highlighting his complete containment of elite wide receivers and shaping new terminology for scouts.

His debut in the professional ranks in 1969 immediately demonstrated his dominance in his position. Wehrli joined the starting lineup, secured his side of the field, intercepted three passes, and earned consensus All-Rookie honors, finishing as the runner-up for NFL Defensive Rookie of the Year. He carried this momentum into 1970, posting a remarkable statistical season with 6 interceptions, which earned him his first of seven career Pro Bowl selections and his first first-team All-Pro recognition.

After a brief transitional phase for the Cardinals’ defense in the early 1970s, Wehrli fully established himself as an unstoppable perimeter defender by the mid-1970s. His exceptional coverage skills drew praise from Dallas Cowboys legend Roger Staubach, who famously called Wehrli a "shutdown corner"—a phrase widely regarded by football historians as the first time it was used to describe a defensive back. With this recognition from his toughest rival, Wehrli became a key player for Don Coryell's competitive St. Louis teams, earning four straight Pro Bowl selections (1973–1976) and three consecutive first-team All-Pro honors (1974–1976). His peak performance came in 1975, when he intercepted six passes, helping the Cardinals finish with an 11-3 record and win the NFC East.

As Wehrli’s career neared its end, his exceptional technical skills kept him highly effective, despite a natural decline in his elite vertical speed. In 1979, he earned his final Pro Bowl selection as a veteran and continued mentoring an evolving secondary. His long, historic stint in a St. Louis uniform concluded after the strike-shortened 1982 season, when he retired after 193 regular-season games, never having worn another professional jersey.

Wehrli was named to the NFL 1970s All-Decade Team, and in 2007, he was enshrined in the Pro Football Hall of Fame.  That same year, Wehrli was part of the inaugural Cardinals Ring of Honor Class.