Caleb Lomu

Summary

Caleb Lomu (21 years old) is an ascending and athletic left tackle prospect from the University of Utah. Lomu spent the past two seasons as a starting left tackle in Salt Lake City after playing just three games and redshirting in 2023. The Gilbert, Arizona native started all 12 games for the Utes in 2025 and was named First Team All-Big 12. Lomu declared following his redshirt sophomore season and feels like a player who is only beginning to scratch the surface of his potential. The former 4-star recruit is a better pass blocker than run blocker today,, but should be an intriguing prospect for teams looking to acquire a left tackle on the first night of the draft.. The 6’6” Lomu did not give up a sack in 2025.

Strengths

• Athletic Mover: Lomu’s athletic testing numbers verify the tape where he showed explosive and smooth movement skills over the past two seasons.. Lomu thrives in space as a blocker.

• Size and Frame: At 6’6” and 313 lbs. with over 33” arms, Lomu meets the thresholds and prototypes that team put on left tackles at the pro level. At only 21 years old, there is even more to develop with his frame.

• Pass Protection: As a redshirt sophomore, Lomu allowed zero sacks and finished tied for 4th nationally with a 98.3 pass block efficiency score. According to PFF, Lomu allowed 2 sacks in his career for the Utes.

• Upside: People love to say a player is “just scratching the surface” this time of the year as they evaluate prospects, but Lomu certainly seems to fit that billing. Lomu is a pro-ready pass protector with the size, traits, and work ethic to excite NFL teams. His deficiencies mostly seem to be fixable with coaching, development, and time.

Weaknesses

• Experience and Sample Size: Despite two years of starting experience at Utah, PFF only credited Lomu with 301 true pass sets in 2025 — this stat strips out RPO’s, play action, and screens. However, 2026 prospects like Blake Miller and Francis Mauigoa both had 688 and 637 true pass set reps respectively.

• Strength: Lomu possesses an NFL frame, but will need to fill out and improve his core and upper body strength with the help of an NFL strength and conditioning program.

• Run Blocking: Improved strength should help in his run blocking but he will need to also need to improve his play demeanor. Lomu is not always a nasty finisher or “violent” lineman. Can they be coached into a player? That will be a point of debate across draft rooms .

• Zone Blocking Only?: With the spread of the Shanahan-style offense and run game across the league, there are a lot of teams that heavily rely on zone blocking concepts, but for the teams that primarily use gap scheme concepts on the ground, Lomu may not grade very highly on their board.

Outlook

Lomu is a pure left tackle prospect in a draft class with few of them. The two-year starter is a smooth pass protector with lots of meat still left on the bone in his development as he fills out his frame and gets more experience. Like any other player, beauty will be in the eye of the beholder as he will require work in the weight room and on the finer details as a run blocker. Overall, Lomu profiles as a starting caliber left tackle who could develop into a long-term solution for a team given the proper development and scheme.

Pro Comparison: Garret Bolles

Team Fits: CLE, SF, CHI, GB, NE