Marlen Sewell is a safety who has not played this season; the last season with a stat line was 2025, at Vanderbilt.
Sewell moves between deep coverage and the slot. Fifth year in the same secondary at Vanderbilt. A game that shows it: 8 tackles against Texas — Week 10, 2025.
Play style
Moves between deep coverage and the slot — the modern positionless DB.
Activity vs finishing · season enumeration
What the box score actually says
52 tackles. 2 passes defended. 0 interceptions. 1.5 TFL.
Counts only, never a rate — splash-event sample sizes this small (interceptions, pass breakups, TFL) are noise as a rate and signal only as a tally.
Closest statistical matches, adjusted for opponent strength.
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| Season | Team | |||||
|---|---|---|---|---|---|---|
| 2025 | Vanderbilt | 52 | 28 | 1.5 | 0.5 | 2 |
| 2024 | Vanderbilt | 19 | 10 | 0.0 | 0.0 | 1 |
| 2023 | Vanderbilt | 25 | 12 | 1.0 | 0.0 | -- |
| 2022 | Vanderbilt | 1 | -- | 0.0 | 0.0 | -- |
| 2021 | Vanderbilt | 3 | 3 | 0.0 | 0.0 | -- |
| Career | 100 | 53 | 2.5 | 0.5 | 3 |
Game log · Week-by-week
2025 season · 12 games
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| Wk | Opp | TKL | SOLO | TFL | SACK | INT | PD | Note |
|---|---|---|---|---|---|---|---|---|
| Wk 2 | W 44-20@ Virginia Tech | 5 | 3 | 0.0 | 0.0 | — | 0 | |
| Wk 3 | W 31-7@ No. 11 South Carolina | 1 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 4 | W 70-21vs Georgia State | 2 | 1 | 0.0 | 0.0 | — | 0 | |
| Wk 5 | W 55-35vs Utah State | 7 | 3 | 0.0 | 0.0 | — | 0 | |
| Wk 6 | L 14-30@ No. 10 Alabama | 4 | 3 | 0.0 | 0.0 | — | 0 | |
| Wk 8 | W 31-24vs No. 10 LSU | 2 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 9 | W 17-10vs No. 15 Missouri | 6 | 4 | 0.0 | 0.0 | — | 0 | |
| Wk 10 | L 31-34@ No. 20 Texas | 8 | 4 | 0.0 | 0.0 | — | 1 | Season-high 8 tackles |
| Wk 11 | W 45-38vs Auburn | 4 | 4 | 0.0 | 0.0 | — | 0 | |
| Wk 13 | W 45-17vs Kentucky | 3 | 1 | 0.5 | 0.5 | — | 0 | |
| Wk 14 | W 45-24@ No. 18 Tennessee | 6 | 2 | 1.0 | 0.0 | — | 1 | |
 Bowl | L 27-34vs Iowa | 4 | 3 | 0.0 | 0.0 | — | 0 | |
| Total | 52 | 28 | 1.5 | 0.5 | — | 2 |
Week 14 · 2025
W 45-24
at Tennessee
1 tackle for loss · 6 tackles · 1 pass breakup
Dominant 21-point win on the road against Tennessee.
Where his impact shows up on the stat sheet
PD rate
4%2 pass breakupsTackle volume
52tackles this seasonTFL rate
3%2 TFL52 tackles · 1.5 for loss · 0.5 sacks · 2 pass breakups.
5 seasons under Clark Lea — 26-36 over that span.
Splits · Per-game
2025 season · 12 games
Home vs Road
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Home6g | 4.0 | 0.1 | 0.1 | 0.0 |
| Road5g | 4.8 | 0.2 | 0.0 | 0.4 |
First half vs Second half
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Weeks 1-76g | 3.8 | 0.0 | 0.0 | 0.0 |
| Weeks 8+6g | 4.8 | 0.2 | 0.1 | 0.3 |
Supporting cast · Scheme
Staff and system around the player
Head Coach
Clark Lea
Pass share
50.4%
400 pass / 394 run
Plays / game
61.1
13 games
Team sack rate
5.1%
395 dropbacks · PBP
Scheme: Balanced, slow tempo.
Player standing · 2025
About as many tackles a game as a typical FBS defensive back who plays every week.
Recognition
Production · CFB Zeitgeist Score
Three-star recruit. Now #320 at the position.
2026 outlook
Outside shot for All-SEC
Based on 2025: #17 of 28 SEC Ss
A base rate for the rank, not a forecast of this player: 22% of returning players who ranked #11–20 at their position in their conference made an all-conference team the next season (95% confidence interval 19–25%).
Four or fewer games in the first season, then ten or more.
The role got bigger.
Coaching lineage · 2021–2025
1 coachPlayed every college season under Clark Lea.
