
#55 DT · San Francisco 49ers
1 transaction this offseason
Height
6'3"
Weight
301 lbs
Age
23
Draft
Undrafted
Experience
0 yrs
DT Rank
#84 / 216
Grade Sebastian Valdez
Your grade joins the crowd-sourced Fan Verdict.
On the field, Sebastian Valdez grades out as a middling DT for San Francisco 49ers (C+ Performance). That places him 84th of 216 graded defensive tackles. Against that production, his deal reads as good value on the Contract Value Index (B-) — the team is paying below what the play would command. The public read is negative (D+ Sentiment), drawn from current news and social signal rather than the box score. As a prospect, expect these grades to move quickly as a real sample builds.
Total Value
$1.0M
AAV
$1.0M/yr
Sebastian Valdez's contract earns a B- Contract Value Index, with the AAV sitting where the comparable-tier deals tend to settle. At $1.005M annually, this is a developmental floor deal—the kind of prove-it contract San Francisco extends to practice squad prospects who show enough in training camp and preseason to warrant a real shot at the roster. Valdez's 2025 season production of 6 tackles, 0.5 sacks across 3 games reflects a limited but legitimate role: he earned his NFL debut against the Rams and is competing for special teams snaps and emergency defensive line depth, which is exactly the trajectory the 49ers' coaching staff expected when they elevated him. At 23 years old and just one season into his career, Valdez is operating at the right salary band for a developmental defensive tackle—this isn't a bet-the-farm investment, but it's also not organizational filler, given that San Francisco has already featured him in live game action. The measured sentiment around him (cautious optimism paired with realistic depth-piece expectations) and the team's recent roster churn suggest the 49ers view this as a low-risk, high-upside depth acquisition in an organizational rebuilding phase. The CVI grade reflects solid value architecture for his stage: a young defender on a modest deal with demonstrable promise and room to grow into a rotation role.
Other same-position deals the Contract Value Index also places in the B band — a quick read on where Sebastian's contract sits relative to comparable money.
Among defensive tackles on the San Francisco 49ers, Sebastian Valdez's output grades to a C+ performance level. The 23-year-old rookie recorded 6 tackles and 0.5 sacks across 3 games in the 2025 season, a modest foundation that reflects his status as a developmental depth piece rather than an immediate contributor. His tackle production, while limited in absolute terms, represents the most concrete evidence of his ability to get on the field and make contact in game situations—a crucial early-career milestone for a practice squad addition. The absence of consistent sack production underscores the raw nature of his pass-rush repertoire, a common learning curve for young interior linemen transitioning from college schemes to the NFL. Valdez's role remains anchored in special teams contributions and emergency defensive line depth, with the 49ers' decision to elevate him for game action against the Rams signaling that the coaching staff sees legitimate upside worth developing rather than pure organizational filler. The media narrative and fan expectations align realistically around his trajectory: a prospect with enough promise to earn snaps, but one whose long-term impact depends heavily on continued improvement during the offseason and preseason phases heading into next season.
Sebastian Valdez ranks 84th of 216 graded defensive tackles by performance. That slots Sebastian between Jayson Jones (C+) just ahead and Teair Tart (C+) just behind.
Graded higher
Jayson JonesTampa Bay BuccaneersC+Kris Jenkins Jr.Cincinnati BengalsC+Kyler BaughPittsburgh SteelersC+Graded lower
Teair TartLos Angeles ChargersSebastian Valdez enters the NFL conversation with a D+ sentiment grade, reflecting the realistic expectations surrounding a developmental depth signing. The media coverage has been measured but encouraging, with outlets tracking his progression from practice squad addition to earning his first NFL snaps against the Rams—a clear signal that San Francisco's coaching staff sees legitimate upside in the young defensive tackle. While fans and analysts view this as typical organizational depth building rather than a immediate impact move, there's underlying optimism about his developmental trajectory. The 49ers' willingness to elevate him for game action suggests they view Valdez as more than just a camp body, positioning him as a legitimate candidate for special teams contributions and emergency defensive line depth. His sentiment reflects the cautious optimism surrounding late-round developmental prospects who show enough promise to earn actual playing time in their rookie season.
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Sebastian Valdez is a player on a rookie-scale contract listed at DT for the San Francisco 49ers. FanVerdicts covers every NFL player, team, GM, and transaction — and puts your verdict on all of it. Sign in to cast your Fan Verdict on Sebastian Valdez, see where the crowd lands, and argue the call. FanVerdicts also brings its own read — performance, sentiment, and Contract Value Index — as one honest input alongside the crowd's. Where FanVerdicts has weighed in so far: Contract Value Index B-, Performance C+, Sentiment D+.
The crowd's Fan Verdict moves in real time as fans vote on this profile. FanVerdicts' own read updates as new data lands — performance recalculates when NFL game stats post, sentiment shifts with media coverage and fan discussion, and the Contract Value Index recomputes when contract terms change. Contract details below show the structure (years, total value, average annual value, guarantees) behind the Contract Value Index read.
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