Atonio
Mafi.
Atonio
Mafi.
UCLA
"A four-year defensive tackle who played one season at guard and was already dominant in a phone booth — the question was never power, it was how much technique could be layered on top of it."Pre-draft read
A converted interior defensive lineman who played left guard for exactly one season, Mafi is a squat, enormously thick body who wins by getting under pads and moving people. He fires off low and generates real displacement on down blocks and duo doubles, where his mass and leg drive dent a front side. The mechanics are raw — short, choppy footwork, inconsistent punch timing — but the base strength is genuine.
In protection he is a wall when he can set shallow and anchor, absorbing bull rushers with a wide base and a heavy grip. Lateral quickness is the limiter: interior counters and games beat him to spots, and he is no puller or second-level mover. The signature is one-year-old power — a defensive tackle's violence applied to blocking.
A gap and duo-heavy run scheme that lets him block down, work vertical doubles and set shallow in protection instead of asking him to move laterally.
Year 1: sixth interior lineman and short-yardage package guard. Ceiling: a physical starting guard in a downhill run offense that protects him from space assignments.
An outside-zone offense that asks guards to reach 3-techniques on the move and pull across the formation — his footwork cannot cover that ground.
His value is inversely proportional to how far he has to travel before contact.
Atonio Mafi College Highlights, UCLA, G | New England Patriots 2023 NFL Draft Pick
Atonio Mafi Left Guard Highlights
OL Atonio Mafi after UCLA practice 9/7
Mafi is a developmental guard with a genuinely unusual résumé. He arrived at UCLA as a defensive lineman and spent four seasons there, then flipped to offense for his final year and started all 13 games at left guard. He played 56 career games, tying a school record, but only one season of that came on the side of the ball he was being drafted to play. Evaluations of him were less about polish than about whether a coaching staff believed in the trajectory.
The tape sells strength. UCLA ran a heavy dose of gap and inside zone, averaged 237.2 rushing yards per game — sixth in FBS — and produced a 1,000-yard back for a second straight year, with Mafi part of the interior that cleared it. He is a mauler in a phone booth and a stout anchor when he sets shallow. The flags were the flip side of the same profile: heavy feet, a narrow radius of effectiveness, and reps where technique lagged behind effort against stunts and interior speed.
The board treated him as a Day 3 project with starter chance rather than a plug-in answer. He earned an East-West Shrine Bowl invite, where the Patriots staff coached him directly and got a two-week look. New England took him at 144 — a bet on frame, disposition and a one-year learning curve that had clearly moved fast.
- 01
Elite functional power
a defensive lineman's base strength translated directly to displacement on down blocks and duo doubles, where he routinely dented the front side.
- 02
Natural pad level
plays under the pads of interior defenders because of a compact, thick build, winning leverage battles before hand placement even matters.
- 03
Anchor against bull rush
sets shallow, widens his base and absorbs power without giving ground, an immediate asset for third-down interior protection.
- 04
Positional trajectory
went from a defensive tackle to a 13-game starting left guard in one offseason, evidence of unusual learning speed and coachability.
- 05
Run-game temperament
finishes to the whistle in a scheme that averaged 237.2 rushing yards per game, sixth in FBS, with a 1,000-yard back behind him.
- 01
Lateral quickness
short, choppy steps limit his ability to reach a defender lined up outside his frame or recover once beaten to a spot.
- 02
Space blocking
not a puller or an effective second-level climber; his value shrinks sharply when asked to block anyone more than a few yards away.
- 03
Technique lag
hand timing and punch placement were inconsistent after only one year on offense, and he lost reps he had already won with leverage.
- 04
Games and stunts
processing of interior twists was late, and passing off rushers cleanly in protection remained the most obvious learning curve.
Offensive linemen do not accumulate box-score statistics, so there is no season table here. Games and starts are only listed when an official source publishes them.
Massive Day 3 interior body with real drive-block strength who bounced between starter and swing roles.
Heavy-handed power guard who anchored well and started for years without ever being an athlete in space.
Powerful but tight interior developmental pick whose feet kept him on rosters without ever locking down a job.
Everything above is the pre-draft evaluation. This section is what actually happened — updated year over year.
New England kept him and used him immediately, an unusual outcome for a one-year convert. He appeared in all 17 games as a rookie in 2023 and started five, mostly filling in on an interior line that never settled, and the reps looked exactly like the projection: sturdy when he could set and strike, exposed when he had to move. The Patriots released him at 2024 cut-downs. Indianapolis signed him to the practice squad that August, elevated and activated him during the season, and he played three games before being waived in December 2024. The Raiders signed him in July 2025, kept him on the practice squad out of camp, and promoted him to the active roster on December 22, 2025, after an injury to Jordan Meredith; he closed the year on the field, including starts in the final two weeks.
In hindsight the pick reads honestly. A fifth-rounder who logs 20-plus career games and a handful of starts across three organizations is doing the job Day 3 interior linemen are drafted to do, and the tie-breakers scouts liked — the strength, the disposition, the speed with which he learned a new position — are what have kept him employed. The ceiling assessment also held: the feet never became a strength, and he has not carried a starting job for a full season. He is a functional swing interior body, which is a fair return at 144.