Jackson Cantwell

Physical Profile

Elite frame for the position: 6-7½ and 320-325 pounds with the weight carried cleanly rather than soft, and reportedly still adding functional mass since enrolling. Arm length and hand size have not been publicly measured but his throwing dimensions point to plus levers. What separates him from other very large tackles is documented explosive power: a 76-foot shot put and 206-foot discus require rotational force, hip torque and ground-force production that translate directly to drive blocking and re-anchoring. His parents, Christian Cantwell (2008 Olympic silver, five-time world champion) and Teri Steer, give him a pedigree that supports the athletic testing being real rather than a camp outlier. Lateral quickness and change of direction are good for his size but not yet at the level of his straight-line power, which is why 247Sports' Gabe Brooks projects an early home at right tackle or guard before a move to the blind side.

Play Style

A drive blocker first. On film he plays with a mauler's temperament, fits his hands, rolls his hips and finishes through the whistle, and he is at his best on gap and duo concepts where he can displace a defender and climb. In pass protection he relies on length and a strong anchor more than on refined footwork, using a long punch to stall rushers rather than mirroring them, which is effective against power and adequate against speed. He plays with a noticeably even temperament for a player of his notoriety, rarely taking penalties or losing technique after a bad rep. The overall picture is a physically finished body still catching up technically, which is exactly the archetype Miami has developed successfully before with Francis Mauigoa.

Strengths

• Rare power at the point of attack: the same hip-and-torso rotation that produces a national-record shot put shows up as displacement on down blocks and doubles, where he moves defensive tackles off the line rather than stalemating them.
• Positional versatility with proven repetitions: started at left tackle for Nixa, took first-team left tackle reps in Miami's spring, and has since been working at guard with the first unit. 247Sports' evaluation explicitly cites the ability to 'play all over the offensive front.'
• Mass and anchor against power: at 325 pounds with a low functional base for his height, bull-rushes and long-arm attempts do not collapse the pocket, which lets a staff live with him inside immediately while his pass-set footwork matures.
• Competitive profile and readiness: a two-year varsity starter at the highest Missouri classification, a decorated multi-sport athlete who continued competing in track after committing, and an early enrollee who had a full spring of Cristobal and Alex Mirabal coaching before his first fall camp.

Areas to Improve

• Pass-set refinement against speed: at his length he can be tempted to over-set or lunge against edge rushers who threaten the outside track; college-level hand timing, independent hand usage and patience in the kick-slide are the gap between him being a guard now and a left tackle later.
• Pad level and knee bend over long series: taller linemen with his power tend to win early with force and then rise as they fatigue, giving shorter interior rushers leverage. Sustaining a consistent hinge through the fourth quarter is a development priority.
• Level of competition adjustment: Missouri Class 6 offered few weekly matchups against SEC/ACC-caliber edge talent, so his first exposure to elite quickness is happening in live ACC games rather than in a redshirt year.

College Projection

Immediate starter. Miami's stated plan, per multiple 2026 preseason reports, is to start him at guard as a true freshman to acclimate him to game speed before moving him to tackle, mirroring the Mauigoa path. He split first-team reps with Samson Okunlola at left tackle in spring and fall camp and entered the season as a projected starter, reported to be in the opening lineup. Expect a full freshman season as a starting guard with spot work at tackle, a move to a full-time tackle role by 2027, and left tackle by 2028 at the latest. Barring injury he is a three-year starter who will be eligible for the 2029 NFL Draft after his third season.

NFL Outlook

First-round profile, with top-10 potential if the left tackle transition takes. The combination of a 6-7½, 325-pound frame, verified elite power output, positional versatility across four spots and an early-enrollee start on a Power Four line checks nearly every box NFL evaluators want in a tackle. His floor is a long-term starting guard or right tackle, which is itself a Day 1 or early Day 2 outcome. The variable is whether his pass-set footwork and hand independence develop enough to hold up on an island against NFL speed; if they do, he is a franchise left tackle candidate. Three years of Cristobal/Mirabal coaching is the ideal environment for that development.

Best Fit

A program built around a physical, gap-and-duo run game with a coaching staff that develops linemen through position cross-training, which is precisely what he chose in Miami. Cristobal and Mirabal run a downhill, multiple-tight-end scheme that lets his power show immediately and have a documented track record of starting elite freshmen inside before kicking them out to tackle. A pure wide-zone or Air Raid attack that asks tackles to live in vertical sets from day one would have exposed his footwork before it was ready; the Miami plan hides that weakness while it develops.