J.K. Dobbins Exits Sunday's Game vs. Jaguars With Hamstring Injury

J.K. Dobbins left Sunday's game against the Jaguars with a hamstring injury, and the Broncos have listed him as Questionable with no additional detail — meaning this one is still taking shape. The hamstring designation is confirmed; the grade is not. Until imaging or a more specific team characterization surfaces, we're working with a wide clinical window.

The biology here matters. Hamstring strains in running backs run a spectrum from Grade 1 (1–2 weeks) to Grade 2 (3–6 weeks) to Grade 3 (6–10 weeks). The fact that Dobbins exited mid-game is meaningful — in-game exits from a hamstring injury tend to suggest at least moderate discomfort, though that's INFERRED from the mechanism of the report, not confirmed by imaging or clinical examination. A Grade 1 that forces an exit is possible; so is a Grade 2. A Grade 3 non-surgical presentation is the less likely but most serious end of the range.

The injury date is anchored to September 20, 2026 — the day of the game — which is also today's report date. At this point, Dobbins is at day zero. The published literature on hamstring strains in NFL skill players (T2 evidence, moderate confidence) puts the floor at 1 week for Grade 1 and 3 weeks for Grade 2. Grade 2 is the injury that creates real RTP uncertainty for a running back, because the difference between 90% and 100% hamstring health is functionally significant at the speed and cutting demands of the position.

Watch signal: Practice participation across Wednesday–Friday this week will be the primary data layer. A DNP-to-DNP trajectory is a red flag; LP-to-FP is reassuring. Any MRI disclosure would allow a meaningful grade and timeline update. The "Questionable" tag alone carries almost no predictive weight at this stage — it's a placeholder, not a prognosis.