Clark Haggans is a career quality starter β a linebacker whose body of work places Haggans in the top half of all players at the position historically. The Knox model values sustained contribution over flash, and Haggans's career arc reflects exactly that kind of reliable professional-grade performance.
Postseason all-time ranks
A quality linebacker with a top 30% among starters β a legitimate starter who contributed meaningfully across their career.
Worth 47 points of value above a freely-available replacement linebacker β top 47% of all 4,642 ranked at the position. 6 of 10 seasons cleared the replacement bar, by +7.8 on average.See board β
Seasons above replacement
6 seasons Γ ~7.8 surplus β VORP 47
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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | |||||
| 2001 | β | PIT | 1 | β | 2 | 0 | 2 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| 2002 | β | PIT | 14 | β | 24 | 15 | 9 | 4 | 9 | 6.5 | 19.5 | 0 | 8 | 1 | β | 0 | 0 |
| 2003 | β | PIT | 5 | β | 14 | 9 | 5 | 0 | 0 | 1.0 | 1.0 | 0 | 1 | 1 | β | 0 | 0 |
| 2004 | β | PIT | 11 | β | 31 | 23 | 8 | 0 | 0 | 7.0 | 7.0 | 0 | 1 | 3 | 1 | 0 | 0 |
| 2005 | β | PIT | 13 | β | 52 | 33 | 19 | 0 | 0 | 9.0 | 9.0 | 0 | 2 | 4 | β | 0 | 0 |
| 2006 | β | PIT | 15 | β | 60 | 36 | 24 | 0 | 8 | 6.5 | 14.5 | 1 | 4 | 2 | 1 | 0 | 0 |
| 2007 | β | PIT | 16 | β | 44 | 23 | 21 | 0 | 7 | 3.0 | 10.0 | 0 | 1 | 0 | 1 | 0 | 0 |
| 2008 | β | ARI | 8 | β | 15 | 13 | 2 | 1 | 3 | 1.5 | 5.5 | 0 | 2 | 0 | 1 | 0 | 0 |
| 2009 | β | ARI | 16 | β | 66 | 49 | 17 | 5 | 10 | 6.0 | 21.0 | 0 | 1 | 2 | β | 0 | 0 |
| 2010 | β | ARI | 13 | β | 45 | 36 | 9 | 6 | 6 | 5.0 | 17.0 | 0 | 2 | 1 | β | 0 | 0 |
| 2011 | β | ARI | 16 | β | 43 | 27 | 16 | 5 | 8 | 3.0 | 16.0 | 0 | 2 | 1 | 1 | 0 | 0 |
| 2012 | β | SF | 2 | β | 2 | 2 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| Career | β | 130 | β | 398 | 266 | 132 | 21 | 51 | 48.5 | 120.5 | 1 | 24 | 15 | 5 | 0 | 0 | |
| Season | Age | Team | G | GS | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | 24 | PIT | 1 | β | 2 | 0 | 2 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | β |
| 2002 | 25 | PIT | 14 | β | 24 | 15 | 9 | 4 | 9 | 6.5 | 19.5 | 0 | 8 | 1 | β | 0 | 0 | 10.1 |
| 2003 | 26 | PIT | 5 | β | 14 | 9 | 5 | 0 | 0 | 1.0 | 1.0 | 0 | 1 | 1 | β | 0 | 0 | 2.7 |
| 2004 | 27 | PIT | 11 | β | 31 | 23 | 8 | 0 | 0 | 7.0 | 7.0 | 0 | 1 | 3 | 1 | 0 | 0 | 7.9 |
| 2005 | 28 | PIT | 13 | β | 52 | 33 | 19 | 0 | 0 | 9.0 | 9.0 | 0 | 2 | 4 | β | 0 | 0 | 9.4 |
| 2006 | 29 | PIT | 15 | β | 60 | 36 | 24 | 0 | 8 | 6.5 | 14.5 | 1 | 4 | 2 | 1 | 0 | 0 | 10.5 |
| 2007 | 30 | PIT | 16 | β | 44 | 23 | 21 | 0 | 7 | 3.0 | 10.0 | 0 | 1 | 0 | 1 | 0 | 0 | 7.3 |
| 2008 | 31 | ARI | 8 | β | 15 | 13 | 2 | 1 | 3 | 1.5 | 5.5 | 0 | 2 | 0 | 1 | 0 | 0 | 3.6 |
| 2009 | 32 | ARI | 16 | β | 66 | 49 | 17 | 5 | 10 | 6.0 | 21.0 | 0 | 1 | 2 | β | 0 | 0 | 9.8 |
| 2010 | 33 | ARI | 13 | β | 45 | 36 | 9 | 6 | 6 | 5.0 | 17.0 | 0 | 2 | 1 | β | 0 | 0 | 7.6 |
| 2011 | 34 | ARI | 16 | β | 43 | 27 | 16 | 5 | 8 | 3.0 | 16.0 | 0 | 2 | 1 | 1 | 0 | 0 | 8.1 |
| 2012 | 35 | SF | 2 | β | 2 | 2 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | β |
| Career | 130 | 398 | 266 | 132 | 21 | 51 | β | β | 1 | 24 | 15 | 5 | 0 | 0 | 77 |
A solid career by KV-H: a peak-driven profile that scores 53 of 100, era-normalized against tackles/g peers across 10 scored seasons.
Blend 52.8 Γ longevity 1 = KV-H 53Β· confidence 96%
Season-by-season quality (era-relative tackles/g)
Reached 24% 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: 88%.
Amber = this player (normalized to own peak). Indigo = average linebackers 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.
College stats are not imported for this profile yet.
StatVault has the verified college attribution (Colorado State), but no parsed college box-score table is present in this profile artifact. The section stays here so every profile has a consistent college-stats landing point without fabricating unavailable rows.
Career teammates and draft class, derived from year-by-year rosters β every name is linked.
Clark inherited the Pittsburgh Steelers LB room from Kendrell Bell (2001β2004), and handed it to James Farrior (2002β2011).
Statistical + physical similarity across every player in the database, position-relevant (0β100%).
Joined SF (from ARI)
Last recorded season with SF
Joined ARI (from PIT)
Drafted by PIT β Round 5, Pick 137
From nflverse weekly injury reports Β· coverage begins 2009.
| Season | Team | Games Out | Designations |
|---|---|---|---|
| 2012 | SF | 0 | W16QuestionableΒ· ShoulderW17QuestionableΒ· Shoulder |
| 2010 | ARI | 0 | W8DoubtfulΒ· GroinW9DoubtfulΒ· GroinW10QuestionableΒ· GroinW11QuestionableΒ· GroinW12QuestionableΒ· GroinW13QuestionableΒ· GroinW14QuestionableΒ· GroinW15QuestionableΒ· GroinW16QuestionableΒ· GroinW17QuestionableΒ· Groin |
StatVault's proprietary player intelligence, informed by full career data. How Knox works β
Era-normalized career quality β z-scored against 10-season peers. See all β
Career durability β games played vs. scheduled, across 12 seasons.
Tackles 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 Tackles | Tackles/G | β 2025 Tackles | β 2025 /G |
|---|---|---|---|---|
| 2002 | 24 | 1.7 | 0-24 | 0 |
| 2003 | 14 | 2.8 | 25+11 | 1.4 |
| 2004 | 31 | 2.8 | 25-6 | 1.5 |
| 2005 | 52 | 4 | 52 | 3.1 |
| 2006 | 60 | 4 | 53-7 | 3.1 |
| 2007 | 44 | 2.8 | 27-17 | 1.6 |
| 2008 | 15 | 1.9 | 10-5 | 0.6 |
| 2009 | 66 | 4.1 | 58-8 | 3.4 |
| 2010 | 45 | 3.5 | 48+3 | 2.8 |
| 2011 | 43 | 2.7 | 34-9 | 2 |
Data: nflverse:players, nflverse:player_stats_def, nflverse:combine, nflverse:draft_picks, nflverse:injuries, espn.com:stats-api (facts-only reference) Β· multi-source verified via the StatVault Oracle Β· updated 6/18/2026
Career Value Β· VORP
47 career value over replacement β #2127 all-time of 4,642. 4.7/season above a replacement-level LB.
Pick #137 (Rd 5) Β· PIT Β· 2000 Β· +19.5 vs expected KV-H
Fan Rating
Rate Clark Haggans β All-Time
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Similar Players
Composite score across availability, IR frequency, and injury severity. See all β
Clark inherited the Arizona Cardinals LB room from Chike Okeafor (2005β2009), and handed it to Paris Lenon (2010β2012).
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.
Micheal Barrow
LB
86% match
2000 Draft ClassmatesFull class β
Wore 3 distinct franchise crests across 12 seasons (2001β2012) β a true nomad. The crest trail: