Jacobian Guillory II is arriving at Chargers training camp with the kind of profile that can sneak up on a roster battle. He’s an undrafted rookie defensive tackle, and the odds are long. But the path is there.
The former LSU standout signed with Los Angeles after going undrafted in the 2026 NFL Draft, and he joins a defensive line that wants physicality and depth in the trenches. He doesn’t come in with the expectations of a draft pick, but his game gives him a real chance to get noticed.
Guillory’s college journey at LSU lasted six years, and it included a torn Achilles that cost him the start of the 2024 season before he came back for one final year in Baton Rouge. That kind of recovery says plenty about the approach he’ll bring into camp as he tries to win a spot on the Bolts’ front.
What stands out first is his run defense. At six-foot-two and 312 pounds, Guillory has the frame and lower-body strength to hold up against double teams and clog the interior.
His production in college may not leap off the page, but a lot of his value came from the sort of work that doesn’t always get rewarded in the box score. He stayed firm at the point of attack, freed up linebackers, and made things easier for the edge rushers around him.
That type of player fits what first-year defensive coordinator Chris O'Leary is expected to stress. A physical, disciplined front starts with linemen who can win on early downs, and Guillory has a chance to fill that kind of role if he puts together a strong camp.
He isn’t viewed as a polished interior pass rusher, but there is some upside there. Guillory flashed enough power to collapse the pocket, and his nine quarterback pressures in his final season at LSU point to room for growth. If the Chargers can help him sharpen his hand usage and improve his first-step quickness, he could develop into a more complete tackle.
Camp will also show whether he can hold up against NFL-caliber offensive linemen on a consistent basis. For undrafted players, the route to a roster often runs through dependable practice reps, special teams value, and preseason rotational work.
Los Angeles added heavily to its defensive front this offseason, but there’s still space for a developmental interior lineman to make noise. Getting to the initial 53-man roster will be a tough climb, yet Guillory has the traits coaches tend to like in this kind of player. If he keeps flashing as a pass rusher and embraces his role, he could end up being one of the Chargers’ most interesting training camp names this summer.
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