A.J. Epenesa is a career quality starter β a pass rusher whose body of work places Epenesa in the top quarter of all players at the position historically. The Knox model values sustained contribution over flash, and Epenesa's career arc reflects exactly that kind of reliable professional-grade performance.
A high-end edge rusher defined as much by excellent availability over their career as by their on-field impact (top 20% all-time). Coaches and teammates could count on them being available.
Worth 76 points of value above a freely-available replacement edge rusher β top 33% of all 4,642 ranked at the position. 5 of 6 seasons cleared the replacement bar, by +15.2 on average.See board β
Seasons above replacement
5 seasons Γ ~15.2 surplus β VORP 76
The full season-by-season grids, joined on one timeline. Every selected stat family stays visible at onceβno tab hopping.
| Season | Age | Team | G | GS | Defense | Snap Counts | Advanced Defense & Coverage (2018+) | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | Off | Off% | Def | Def% | ST | ST% | Tgt | Cmp | Cmp% | RateAll | ADOT | Prss | Hrry | QBKD | Bltz | MissTkl | Miss% | |||||
| 2020 | β | BUF | 10 | β | 12 | 9 | 3 | 3 | 4 | 1.0 | 8.0 | 0 | 1 | 0 | β | 0 | 0 | β | 0.0% | 291 | 30.5% | 79 | 27.1% | 1 | 1 | 1.0 | 95.8 | 7.0 | 7 | 3 | 3 | 1 | 0 | 0.0 |
| 2021 | β | BUF | 14 | β | 14 | 8 | 6 | 2 | 9 | 1.5 | 12.5 | 0 | 1 | 0 | β | 0 | 0 | β | 0.0% | 330 | 36.9% | 144 | 40.8% | 0 | 0 | β | β | β | 14 | 5 | 7 | 1 | 4 | 0.2 |
| 2022 | β | BUF | 10 | β | 15 | 12 | 3 | 7 | 10 | 6.5 | 23.5 | 0 | 5 | 2 | 1 | 0 | 0 | β | 0.0% | 375 | 37.6% | 43 | 13.4% | 2 | 2 | 1.0 | 116.7 | 3.0 | 14 | 3 | 4 | 1 | 3 | 0.2 |
| 2023 | β | BUF | 14 | β | 20 | 9 | 11 | 7 | 10 | 6.5 | 23.5 | 2 | 8 | 1 | 1 | 1 | 0 | β | 0.0% | 387 | 40.6% | 26 | 15.0% | 3 | 2 | 0.7 | 52.8 | 6.3 | 14 | 4 | 3 | 1 | 4 | 0.2 |
| 2024 | β | BUF | 16 | β | 36 | 20 | 16 | 8 | 11 | 6.0 | 25.0 | 0 | 2 | 2 | β | 0 | 1 | β | 0.0% | 612 | 55.1% | 63 | 15.5% | 4 | 2 | 0.5 | 58.3 | -3.8 | 16 | 6 | 4 | 0 | 2 | 0.0 |
| 2025 | β | BUF | 15 | β | 32 | 17 | 15 | 2 | 9 | 2.5 | 13.5 | 2 | 4 | 0 | 1 | 0 | 0 | β | 0.0% | 438 | 47.4% | 85 | 29.4% | 4 | 2 | 0.5 | 16.7 | 0.3 | 12 | 3 | 6 | 0 | 3 | 0.1 |
| Career | β | 79 | β | 129 | 75 | 54 | 29 | 53 | 24.0 | 106.0 | 4 | 21 | 5 | 3 | 1 | 1 | β | 0.0% | 2,433 | 41.4% | 440 | 23.5% | 14 | 9 | β | β | β | 77 | 24 | 27 | 4 | 16 | β | |
| Season | Age | Team | G | GS | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 22 | BUF | 10 | 0* | 12 | 9 | 3 | 3 | 4 | 1.0 | 8.0 | 0 | 1 | 0 | β | 0 | 0 | 5.1 |
| 2021 | 23 | BUF | 14 | 0* | 14 | 8 | 6 | 2 | 9 | 1.5 | 12.5 | 0 | 1 | 0 | β | 0 | 0 | 6.7 |
| 2022 | 24 | BUF | 10 | 0* | 15 | 12 | 3 | 7 | 10 | 6.5 | 23.5 | 0 | 5 | 2 | 1 | 0 | 0 | 10.8 |
| 2023 | 25 | BUF | 14 | 0* | 20 | 9 | 11 | 7 | 10 | 6.5 | 23.5 | 2 | 8 | 1 | 1 | 1 | 0 | 12.3 |
| 2024 | 26 | BUF | 16 | 9* | 36 | 20 | 16 | 8 | 11 | 6.0 | 25.0 | 0 | 2 | 2 | β | 0 | 1 | 13.5 |
| 2025 | 27 | BUF | 15 | 0* | 32 | 17 | 15 | 2 | 9 | 2.5 | 13.5 | 2 | 4 | 0 | 1 | 0 | 0 | 8 |
| Career | 79 | 9* | 129 | 75 | 54 | 29 | 53 | β | β | 4 | 21 | 5 | 3 | 1 | 1 | 56.4 |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
| Season | Age | Team | G | GS | Off | Off% | Def | Def% | ST | ST% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 22 | BUF | 14 | 0* | β | 0.0% | 291 | 30.5% | 79 | 27.1% |
| 2021 | 23 | BUF | 14 | 0* | β | 0.0% | 330 | 36.9% | 144 | 40.8% |
| 2022 | 24 | BUF | 15 | 0* | β | 0.0% | 375 | 37.6% | 43 | 13.4% |
| 2023 | 25 | BUF | 15 | 0* | β | 0.0% | 387 | 40.6% | 26 | 15.0% |
| 2024 | 26 | BUF | 17 | 9* | β | 0.0% | 612 | 55.1% | 63 | 15.5% |
| 2025 | 27 | BUF | 16 | 0* | β | 0.0% | 438 | 47.4% | 85 | 29.4% |
| Career | 91 | 9* | β | β | 2,433 | β | 440 | β |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
| Season | Age | Team | G | GS | Tgt | Cmp | Cmp% | RateAll | ADOT | Prss | Hrry | QBKD | Bltz | MissTkl | Miss% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 22 | BUF | 14 | 0* | 1 | 1 | 1.0 | 95.8 | 7.0 | 7 | 3 | 3 | 1 | 0 | 0.0 |
| 2021 | 23 | BUF | 14 | 0* | 0 | 0 | β | β | β | 14 | 5 | 7 | 1 | 4 | 0.2 |
| 2022 | 24 | BUF | 15 | 0* | 2 | 2 | 1.0 | 116.7 | 3.0 | 14 | 3 | 4 | 1 | 3 | 0.2 |
| 2023 | 25 | BUF | 15 | 0* | 3 | 2 | 0.7 | 52.8 | 6.3 | 14 | 4 | 3 | 1 | 4 | 0.2 |
| 2024 | 26 | BUF | 17 | 9* | 4 | 2 | 0.5 | 58.3 | -3.8 | 16 | 6 | 4 | 0 | 2 | 0.0 |
| 2025 | 27 | BUF | 16 | 0* | 4 | 2 | 0.5 | 16.7 | 0.3 | 12 | 3 | 6 | 0 | 3 | 0.1 |
| Career | 91 | 9* | 14 | 9 | β | β | β | 77 | 24 | 27 | 4 | 16 | β |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
A strong starter career by KV-H: a well-rounded profile that scores 64 of 100, era-normalized against sacks/g peers across 6 scored seasons.
Blend 64.2 Γ longevity 1 = KV-H 64Β· confidence 100%
Season-by-season quality (era-relative sacks/g)
Reached 12% of the all-time Sacks leader β a rotational/depth all-time profile at the position.
A 0β100 scale where 100 = matched the all-time leaderat this position. Built only from visible encyclopedia data β career production vs. the all-time leader, plus efficiency (EPA) and comparable-player confidence β so it's a transparent context score, not a subjective rating. Tiers: Elite β₯ 85 Β· Strong β₯ 65 Β· Solid β₯ 45 Β· Depth < 45. Comparable-player confidence: 92%.
Production per snap β the box score normalized by opportunity. SIS is z-scored within edge rushers, shrinkage-regularized so small samples don't spike, over the NFL snap-count era (2012+).
Amber = this player (normalized to own peak). Indigo = average edge rushers aging curve. Group peak age: 25. Source: StatVault KV-H era (1999+).
Percentiles compare each raw measurement against position peers, the full combine pool, and the same draft class where enough samples exist.
Career teammates and draft class, derived from year-by-year rosters β every name is linked.
A.J. inherited the Buffalo Bills DL room from Quinton Jefferson (2020β2024), and handed it to DaQuan Jones (2022β2025).
Statistical + physical similarity across every player in the database, position-relevant (0β100%).
Last recorded season with BUF
Drafted by BUF β Round 2, Pick 54
From nflverse weekly injury reports Β· coverage begins 2009.
| Season | Team | Games Out | Designations |
|---|---|---|---|
| 2023 | BUF | 1 | W15OutΒ· RibW16QuestionableΒ· RibW17QuestionableΒ· Rib |
| 2022 | BUF | 0 | W12DoubtfulΒ· Ankle |
| 2021 | BUF | 0 | W5QuestionableΒ· FootW15QuestionableΒ· Ankle |
StatVault's proprietary player intelligence, informed by full career data. How Knox works β
Era-normalized career quality β z-scored against 6-season peers. See all β
Career durability β games played vs. scheduled, across 6 seasons.
Sacks translated to the 2025NFL β each season's standing among its own-era peers, projected onto 2025's scoring environment. Modern-era (1999+) coverage.
| Season | Actual Sacks | Sacks/G | β 2025 Sacks | β 2025 /G |
|---|---|---|---|---|
| 2020 | 1 | 0.1 | 2+1 | 0.1 |
| 2021 | 1.5 | 0.1 | 2+0.5 | 0.1 |
| 2022 | 6.5 | 0.7 | 11+4.5 | 0.7 |
| 2023 | 6.5 | 0.5 | 8+1.5 | 0.5 |
| 2024 | 6 | 0.4 | 6 | 0.4 |
| 2025 | 2.5 | 0.2 | 3+0.5 | 0.2 |
Data: nflverse:players, nflverse:player_stats_def, nflverse:snap_counts, nflverse:combine, nflverse:draft_picks, nflverse:injuries, wikipedia:college-stats (CC-BY-SA, facts-only) Β· multi-source verified via the StatVault Oracle Β· updated 6/18/2026
Career Value Β· VORP
76 career value over replacement β #1484 all-time of 4,642. 12.7/season above a replacement-level EDGE.
Pick #54 (Rd 2) Β· BUF Β· 2020 Β· +16 vs expected KV-H
Fan Rating
Rate A.J. Epenesa β All-Time
Explore More
Similar Players
Composite score across availability, IR frequency, and injury severity. See all β
The room is reconstructed from arrival order among durable members (β₯4 seasons with the club) at the playerβs position group β a lineage by arrival, not a week-by-week depth chart. Distinct from the league-wide positional GOAT torch.
Chad Bratzke
DE
89% match
2020 Draft ClassmatesFull class β
Gave the Buffalo Bills an entire corpus-attributed career β 6 seasons (2020β2025), one crest. The rarest loyalty in the sport.