Senior linebacker for USC. 2025: 6 tackles.
6′2″ · 225 lb · Santa Ana, CA · Foothill HS
Roman Marchetti
He has spent two seasons in the USC linebacker corps. The receipt: 2 tackles against Missouri State — Week 1, 2025.
Low coverage — composed from the verified record.
Career arc
Game log · Week-by-week
2025 season · 5 games
| Wk | Opp | TKL | SOLO | TFL | SACK | INT | PD | Note |
|---|---|---|---|---|---|---|---|---|
| Wk 1 | W 73-13vs Missouri State | 2 | 0 | 0.0 | 0.0 | — | 0 | Season-high 2 tackles |
| Wk 3 | W 33-17@ Purdue | 1 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 4 | W 45-31vs Michigan State | 1 | 1 | 0.0 | 0.0 | — | 0 | |
| Wk 12 | W 26-21vs Iowa | 1 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 13 | L 27-42@ Oregon | 1 | 1 | 0.0 | 0.0 | — | 0 | |
| Total | 6 | 2 | 0.0 | 0.0 | — | 0 |
SIGNATURE GAME · Week 12 · 2025
W 26–21
vs Iowa
Season context · Team result + system
2 seasons under Lincoln Riley — 16-10 over that span.
Where this defender ranks vs the field
Box-score production percentiles vs the position cohort
Concern: tackles (0th percentile).
Percentiles are versus same-position peers with enough snaps this season, based on box-score production. There are no play-by-play efficiency bars here: CFBD's play-value model credits offensive players only, so no defensive EPA exists to rank.
Splits · Per-game
2025 season · 5 games
Home vs Road
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Home3g | 1.3 | 0.0 | 0.0 | 0.0 |
| Road2g | 1.0 | 0.0 | 0.0 | 0.0 |
First half vs Second half
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Weeks 1-73g | 1.3 | 0.0 | 0.0 | 0.0 |
| Weeks 8+2g | 1.0 | 0.0 | 0.0 | 0.0 |
Supporting cast · Scheme
Staff and system around the player
Head Coach
Lincoln Riley
Pass share
47.3%
129 pass / 144 run
Plays / game
68.2
4 games
Team sack rate
2.2%
137 dropbacks · PBP
Scheme: Balanced.
Player standing · 2025
On the two-deep and pushing for snaps.
2026: Marchetti will compete for playing time at linebacker as a redshirt senior in 2026. Marchetti was put on scholarship following the 2025 season. 2025: Marchetti saw action in all 13 games, primarily on special teams, as a redshirt junior in 2025. He recorded 6 tackles. He tallied 2 tackles…
8 more on the roster · USC team page