Cardinals Add Depth to Linebacker Room With Undrafted Dix

The Arizona Cardinals signed linebacker Stephen Dix to their 90-man roster on Thursday, marking the eighth undrafted free agent the team has added since the draft concluded in May. Dix, who spent the last two seasons at Arkansas after prior stints at Marshall and Florida State, recorded 79 tackles, four tackles for loss, and one sack for the Razorbacks last season—a solid but unremarkable profile for a player who went undrafted across three rounds.

The signing itself is routine organizational housekeeping. Arizona already has a crowded linebacker depth chart: sixth-round pick Karson Sharar, free-agent signing Jack Gibbens, and veterans Mack Wilson, Cody Simon, Owen Pappoe, and Austin Keys. Dix will compete on the practice squad fringe for reps during training camp and preseason, with his long-term NFL viability hinging on special-teams contributions and potential injury opportunities. The Cardinals are not betting on him to produce meaningful snap counts in 2026.

From a betting standpoint, this move carries zero immediate impact on Arizona's defensive unit production or market-moving outcomes. Dix's presence does not alter the team's tackle distribution, sack allocation, or pass-rush structure—those roles are already assigned to established contributors. Even if he makes the practice squad or practice roster, his involvement would be confined to situational snaps (garbage time, special-team packages) where individual prop volume rarely moves the needle. The Cardinals' linebacking corps was already defined before this signing, and a mid-tier FCS-to-SEC prospect at linebacker ranks below the threshold of betting relevance.

Where this matters, if at all, is as a proxy for roster philosophy. Arizona's willingness to stockpile undrafted linebackers suggests the team believes the position is replaceable and development-track-rich—a signal that the team is not panicking about linebacker depth and is comfortable letting draft capital flow toward positions it values more. For bettors monitoring Arizona's defensive construction, this reinforces that the Cardinals' pass-rush and coverage schemes will continue to center on established edge-rushers and secondary talent, not emerging linebacker prospects.