Derrick Harmon has rapidly emerged as a foundational piece of the Pittsburgh Steelers' defensive front. After being selected with the 21st overall pick in the 2025 NFL Draft, the defensive tackle from the University of Oregon brought a rare combination of size, explosive interior pressure, and high-motor play to the AFC North.

For fans and analysts tracking his development, understanding Derrick Harmon's stats requires looking beyond the basic box score. His rookie campaign was defined by high-impact flashes, an unfortunate mid-season injury hurdle, and a level of pass-rushing efficiency rarely seen from interior linemen in their first professional year.

Quick Summary of Derrick Harmon's 2025 NFL Stats

As of the conclusion of the 2025 regular season, Derrick Harmon’s production reflects his role as a rotational starter with high upside.

  • Games Played: 12
  • Total Tackles: 27
  • Solo Tackles: 11 (Refined from 17 based on late-season adjustments)
  • Sacks: 3.0
  • Total Pressures: 22
  • Fumble Recoveries: 1
  • Passes Defensed: 1

These numbers are particularly impressive considering Harmon missed several games due to knee injuries, specifically a sprained MCL in the preseason and a secondary injury in late November.

Deep Dive into the 2025 Rookie Campaign with the Pittsburgh Steelers

Derrick Harmon entered a Steelers locker room known for defensive excellence, standing alongside veterans like Cameron Heyward and T.J. Watt. Wearing jersey #99, Harmon’s role was to provide the interior push that allows edge rushers to operate in one-on-one matchups.

Early Season Explosion (Weeks 1-4)

Harmon’s professional debut was delayed slightly by an MCL sprain suffered in August, causing him to miss the first two games of the season. However, his return in Week 3 against the New England Patriots was a statement performance. In that contest, he recorded 2 solo tackles and his first career NFL sack, showcasing a powerful bull-rush that collapsed the pocket from the inside.

By Week 6 against the Cleveland Browns, Harmon had already tallied 2.0 sacks and 7 total takedowns. Scouts noted his ability to play "heavy" at the point of attack, maintaining gap integrity against the run while possessing the "twitch" to penetrate the A-gap on passing downs.

The Impact of the Mid-Season Injury

The momentum of Harmon's rookie year was interrupted in late November (Week 12). A knee injury sustained against the Chicago Bears sidelined him for several crucial matchups, including games against the Buffalo Bills and Baltimore Ravens. During his absence, the Steelers' defensive efficiency in "success rate against the run" dipped slightly, underscoring Harmon's value in the trenches.

Late Season Return and Wild Card Performance

Harmon returned to full participation in practice by mid-December. His presence was immediately felt in the Week 18 rivalry game against the Baltimore Ravens, where he recorded 2 tackles and a sack. His resilience earned him the Joe Greene Great Performance Award, an internal Steelers honor given to the team's top-performing rookie.

In the post-season, despite the Steelers' loss to the Houston Texans in the Wild Card round, Harmon was a standout. He notched 6 tackles and a sack in that game, proving that he could perform at a high level under the bright lights of playoff football.

Collegiate Foundation: How Oregon Molded a First-Round Talent

To understand why the Steelers invested a first-round pick in Harmon, one must look at his 2024 season with the Oregon Ducks. Harmon was not just a participant; he was a statistical anomaly for an interior defensive lineman.

The 2024 Oregon Season Stats

Harmon’s lone season in Eugene was nothing short of legendary. Starting all 14 games, he recorded:

  • Total Tackles: 45
  • Tackles for Loss (TFL): 10.5
  • Sacks: 5.0
  • Total Pressures: 55 (Led all FBS interior defensive linemen)
  • Forced Fumbles: 2
  • Fumble Recoveries: 2

According to advanced analytics from Pro Football Focus (PFF), Harmon earned an 83.9 overall grade and an 86.3 pass-rush grade. His 55 pressures were 11 more than any other interior lineman in the country, a stat that traditionally correlates highly with NFL success.

Michigan State Roots (2021-2023)

Before transferring to Oregon, Harmon spent three seasons at Michigan State. In East Lansing, he appeared in 28 games (15 starts), accumulating 70 tackles and 3.5 sacks. It was here that he developed the physical toughness required for Big Ten football, which translated seamlessly to the NFL's AFC North division.

Scouting Profile and Physical Attributes

Derrick Harmon possesses the "NFL frame" that defensive line coaches covet. Standing 6'4" and weighing 313 lbs, he has the mass to anchor against double teams but the 35-inch arm length to keep offensive linemen from getting into his chest.

Technical Strengths

  1. Hand Fighting: Harmon’s tape at Oregon showed elite "hand usage." He effectively uses a "club-and-rip" move that allows him to bypass guards before they can establish their anchor.
  2. Functional Strength: In the 2025 season, Harmon demonstrated that he doesn't just push blockers; he displaces them. His ability to hold his ground against "double-team" blocks was a key reason why Steelers' linebackers were often kept "clean" to make tackles.
  3. Motor: Unlike many defensive tackles who see a drop-off in effort after the initial rush, Harmon is known for chasing plays down from the backside, a trait highly valued by Steelers head coach Mike Tomlin.

Areas for Development

As a rookie, Harmon occasionally struggled with "pad level." When his chest gets too high, veteran NFL guards are able to get under his center of gravity. Additionally, improving his lateral agility will be a focus for the 2026 offseason to help him navigate "reach blocks" more effectively.

Clarifying the Name: Derrick Harmon vs. Other Athletes

When searching for "Derrick Harmon stats," it is common to encounter data for two other prominent figures. It is essential to distinguish the current Steelers DT from these historical athletes.

Derrick Todd Harmon (The 1980s Running Back)

Born in 1963, this Derrick Harmon was a running back for the San Francisco 49ers from 1984 to 1986.

  • Career Rushing Yards: 361
  • Career Rushing Touchdowns: 2
  • Career Kick Return Yards: 906
  • Accomplishment: Super Bowl XIX champion. He was a standout at Cornell University and a 9th-round draft pick. His stats are purely offensive and unrelated to the current Pittsburgh defensive tackle.

Derrick "Royalty" Harmon (The Boxer)

A retired professional boxer from Evanston, Illinois, who competed in the light-heavyweight division.

  • Record: 25-7 (12 KOs)
  • Notable Fight: Challenged Roy Jones Jr. for the IBF and WBC light-heavyweight titles in 2001. His career spanned from 1993 to 2008 and is entirely distinct from the NFL.

Future Outlook: What to Expect in the 2026 Campaign

Following a rookie season where he earned team MVP honors from several outlets (such as The Athletic), the expectations for Harmon’s second year are sky-high.

With the potential departure or reduced role of aging veterans, Harmon is expected to transition into a full-time starter. If he can maintain his health and avoid the lingering knee issues that capped his 2025 rookie season at 12 games, a "double-digit TFL" season and a Pro Bowl nod are well within his reach. The Steelers’ coaching staff will likely look to increase his snap share from the ~50% he saw as a rookie to closer to 70-75% in 2026.

Summary of Derrick Harmon's Impact

Derrick Harmon's stats from the 2025 season tell a story of a high-impact player whose ceiling has yet to be reached. His ability to generate 22 pressures and 3 sacks in limited action suggests that the Pittsburgh Steelers have found their next great interior pass rusher. By combining the technical refinement he learned at Oregon with the physical grit required for the NFL, Harmon is on a trajectory to become a household name in the league.

Frequently Asked Questions (FAQ)

What is Derrick Harmon's jersey number?

Derrick Harmon wears #99 for the Pittsburgh Steelers.

Which college did Derrick Harmon attend?

Harmon played his final collegiate season at the University of Oregon (2024). Prior to that, he played three seasons at Michigan State (2021-2023).

How many sacks did Derrick Harmon have in his rookie season?

In the 2025 regular season, Derrick Harmon recorded 3.0 sacks in 12 games. He also added 1.0 sack during the Wild Card playoff round.

Was Derrick Harmon injured in 2025?

Yes, Harmon suffered a sprained MCL in August during the preseason and a separate knee injury in late November, which caused him to miss a total of approximately five regular-season games.

Who is the other Derrick Harmon who played for the 49ers?

The other Derrick Harmon was a running back who played for the San Francisco 49ers between 1984 and 1986. He is a Super Bowl champion and played college football at Cornell.