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RB #417
Sione Vaki headshot
Sione Vaki headshot

Sione Vaki

Tier 13

DET · RB · Age 24

Last synced 1 day ago

Dynasty Value

987Declining

Sione Vaki enters 2026 as Detroit's RB3 behind every-down star Jahmyr Gibbs and free-agent signing Isiah Pacheco, who replaced the traded David Montgomery and...

Trajectory data unavailable
Risk & Opportunity Analysis (12 flags)

Risk Flags

6
  • Depth Chart

    Gibbs is the locked-in alpha (value 9630) with Dan Campbell confirming an expanded role post-Montgomery. Detroit then signed Isiah Pacheco on a 1-year deal to fill the RB2 vacancy, placing Vaki third on the depth chart with near-zero path to volume in a healthy backfield.

  • Injury Concerns

    Vaki suffered multiple injuries throughout 2025 that prevented development, and appeared in only 16 games as a rookie with just 6 rushes for 14 yards and 3 receptions for 37 yards. His inability to stay healthy raises serious durability questions.

  • Roster Hierarchy Collapse

    Dropped to RB3 with only 1 offensive snap in 2025. Tom Kennedy's emergence as kick returner has eliminated Vaki's primary special teams value, making him a likely cut candidate.

  • Roster Cut Candidate

    Vaki is considered a likely cut candidate heading into 2026, with the Lions able to save $942,823 in cap space by releasing him. Tom Kennedy's emergence as kick returner has eliminated Vaki's primary special teams value.

  • Minimal Offensive Role

    Vaki hasn't received non-garbage time carries despite being on the roster, and returned just two kickoffs for 39 total yards in 2025. He has zero established offensive role behind Gibbs and Montgomery.

  • Usage & Volume

    Vaki posted 0% snap share and 0% target share across his final four 2025 games (W14–W18), recording zero fantasy points — a total blackout from offensive involvement heading into the offseason.

Opportunity Flags

6
  • Change Of Scenery

    If Detroit trades or releases one of their established backs, Vaki could emerge as a primary option in Ben Johnson's passing-friendly offense, which has shown success utilizing RBs in the receiving game.

  • Montgomery Trade Scenario

    If Montgomery is traded/released, Vaki could theoretically compete for RB2 reps. However, new OC Drew Petzing's system may prioritize established depth backs over developmental projects.

  • Montgomery Departure Possible

    Lions GM Brad Holmes was noncommittal about Montgomery's future, stating 'He deserves to be in a situation where his skillset can be utilized.' The Lions could save $6 million in 2026 cap space with a post-June 1 cut.

  • Injury Concerns

    Pacheco is on a bargain 1-year, $1.81M deal and carries a documented injury history from Kansas City; if he misses time, Vaki is the next man up in one of the NFL's top offenses behind Goff, St. Brown, and Williams.

  • Draft Capital

    Detroit used zero draft capital on RBs in 2026 (only a R5 WR in Kendrick Law), leaving Vaki's RB3 roster spot intact and free from incoming rookie displacement pressure.

  • Offensive Context

    David Montgomery was traded to Houston this offseason, vacating ~150+ touches; Pacheco absorbs the bulk but the No. 3 role behind two backs over 27 is one injury away from real volume in an elite Lions offense.

Scenarios (4)
  • Buried as RB3/ST-only all seasonlikely-15%

    Gibbs and Pacheco both stay healthy, capping Vaki at kick returns and mop-up duty

  • Pacheco injury elevates Vaki to clear RB2possible+35%

    Pacheco (extensive injury history) misses multiple games, opening 8-12 touches per week behind Gibbs

  • Cut or buried out of the rotationpossible-40%

    Loses camp battle to Saylors/Robichaux or the kick-return job, ending standalone dynasty relevance

  • Gibbs absence makes Vaki a lead committee backunlikely+45%

    Extended Gibbs injury forces Detroit to lean on Vaki for early-down and receiving work

Format Comparison

Sione Vaki — Format Comparison

FormatValuevs Best
PPR 1QBBest1,201—
PPR SF987-214