Alister Vallejo

Physical Profile

Recruiting listings had him at 6-3/300; Michigan enrolled him at 6-3, 307, with some staff listings closer to 6-4/310. That is a genuine nose-to-3-technique frame already at freshman intake — he does not need a redshirt year in the weight room to be functionally strong against Big Ten guards, which is the usual gate for interior DL. Mass is well distributed rather than soft; he plays with enough short-area quickness and lateral agility that evaluators projected reps aligned wide over a tackle, not just as a two-gap plugger. The trade-off that comes with his build and height is pad level: long-legged 6-3/6-4 interior players fight leverage their whole careers, and he does not yet win the pad-level battle consistently.

Play Style

A disruptive penetrator who happens to weigh 307, not a space-eater. He wins early in the down with hand quickness, working blockers laterally to create a soft edge on the interior and then chasing. Against the run he shows the strength to stall single blocks and enough motor to work down the line, but he is at his best attacking a gap rather than holding two. Rush plan is currently move-first rather than plan-first — swim and dip-rip appear on film, but the counters and the pass-rush-to-pressure conversion are still ahead of him. On senior tape he was often the best athlete on the field, which inflates some reps; the technique wins are the ones that project.

Strengths

• Violent, decisive hands — the standout trait on film. He chops down linemen's hands, works blockers east-west and shakes them for quick wins, and flashes both an efficient swim and a dip-and-rip when kicked outside. Hand quickness, not first-step get-off, is what produced 18 sacks from interior alignments.
• Anchor and point-of-attack strength. He stuffs interior linemen with legitimate power, resets the line of scrimmage against down blocks, and can fight through a blocker to chase plays outside the pocket rather than getting stalemated and washed.
• Alignment versatility. He has the athleticism to slide out and speed rush a tackle while carrying the mass to play head-up over a guard — a movable chess piece rather than a fixed-position body.
• Proven production against real competition: 100-plus tackles and 18 sacks over his sophomore and junior years, then 62 tackles, 5.0 sacks, a fumble recovery and a blocked field goal as a senior in 2025. Class 5A D-II second-team All-State and District 11-5A D-II Defensive Lineman of the Year in 2024.

Areas to Improve

• Pad level and leverage. He plays too upright and does not consistently maximize leverage, and the problem magnifies against double teams, where he tends to rise up rather than sink and split. Against Big Ten combination blocks this is the single trait separating him from an early rotational role.
• Hand placement and shed timing. The hands are violent but not always accurate — he wins with disruption rather than a two-step shock-and-shed. Landing inside on the breastplate and stacking-then-discarding will convert existing pressures into stops and turn flash reps into every-down reliability.
• Scheme literacy and gap discipline. Michigan DC Jay Hill was complimentary of the freshman DL group in August 2026 fall camp while noting they still have plenty to learn about the defensive scheme. High school pass-rush freelancing does not survive first contact with an NFL-style run-fit structure.

College Projection

Realistic path is a first-year rotational contributor at 3-technique with special-teams value on the field-goal block unit, given the blocked kick on his senior resume. Michigan's attrition at defensive tackle entering 2026 opens a real snap window that most true freshman interior linemen do not get, and Hill's camp comments put him in the group with a chance. Expect situational pass-rush snaps and second-unit run downs as a freshman, a jump to a starting-caliber rotation piece as a sophomore, and a two-to-three-year runway to full-time starter as leverage and hand placement catch up to his physical tools.

NFL Outlook

Legitimate day-two draft trajectory if the development curve holds. The archetype — a 300-pound interior player with hand violence and pass-rush production — is exactly what NFL teams pay for at 3-technique, and Michigan's recent record of turning defensive linemen into early-round picks is the relevant precedent (Mason Graham is the comparison that gets invoked, though that is an aspirational ceiling, not a floor). The gating factor is leverage: if he learns to play under blockers' pads, he is a top-100 pick conversation by his junior year; if he stays upright, he profiles as a rotational late-round interior player who wins on athleticism against second-string linemen and stalls against starters.

Best Fit

An attacking, gap-penetrating front that lets him play forward — a one-gap 4-3 or a multiple front with an aggressive 3-technique role — rather than a read-and-react two-gap system that would tax the leverage weakness on every snap. He needs a defensive line room with a technique-first position coach and a rotation deep enough that he can be developed rather than thrown into 60 snaps a game. Michigan, which recruited him hard through its DL staff and has been the sport's most productive DL development program in recent cycles, is a defensible fit on both counts.