Could Frank Crum, undrafted out of Wyoming, become the Broncos’ swing tackle in 2026?

Frank Crum’s NFL path has carried the kind of uncertainty that can define an offensive lineman’s first years, and a new offseason conversation is circling a specific question: can he become the Denver Broncos’ swing tackle in 2026? Yahoo Sports framed Crum’s situation as one shaped by a missed draft moment and the follow-on work required to earn real depth value on the edge of the offensive line rotation.

Crum came to the NFL after a “solid career at Wyoming,” and his 2024 draft experience ended with the outcome every hopeful Day 3 prospect fears. According to Yahoo Sports, the seven rounds of the 2024 NFL Draft passed without his name being called. That pushed him into the alternative route the league offers, where undrafted free agents must show they can handle the speed and physicality gap quickly, then do it again under different coaching demands and game-plan wrinkles.

Soon after the draft concluded, Yahoo Sports reported that Crum agreed to sign with the Denver Broncos as an undrafted free agent. The immediate goal from there is straightforward, even if the timeline is not: to make Denver’s 53-man roster. For a tackle, “swing tackle” matters because it is less about being the single-game starter and more about being ready to play multiple tackle-capable alignments if a starter is unavailable, if a matchup demands a particular skill set, or if in-game adjustments change the protection look.

What makes the swing-tackle role a useful lens for this stage of Crum’s career is that it is often a test of transferable traits. Unlike a specialist role, the swing tackle typically needs to survive variety: different pass-protection assignments, different footwork patterns depending on the rusher, and the ability to operate without repeated first-unit reps. Yahoo Sports’ framing suggests the Broncos view Crum’s long-term usefulness as linked to whether he can cover that flexibility at the tackle position.

The bigger context for Denver is roster math. The NFL’s regular-season roster is finite, and the offensive line is one of the positions where teams protect against attrition and matchup volatility. If Crum is to become the kind of swing tackle that coaches trust, it will have to show up in practice availability, assignment consistency, and the simple but decisive tests that come when second-unit reps become live reps.

Still, this is where caution is necessary. The Yahoo Sports discussion is presented as a “could” question, not a confirmation of a finished roster plan. Without additional primary reporting or official roster/transaction documentation beyond the undrafted signing detail, it is not possible to state that Crum has the job locked down or that Denver has definitively settled on him as its swing-tackle option for 2026.

For fans and evaluators, the watch items are practical. Look for whether Crum continues to secure tackle-capable work rather than being positioned elsewhere. Also watch how quickly he handles protection communication and whether coaches give him meaningful run-pass balance reps that indicate trust, not just emergency availability. If he earns that kind of role, the “swing tackle” label will stop being theoretical and become a measurable part of Denver’s offensive line depth structure.