Seattle Mariners
PITCHER HEALTH

Injury History

Managed minor arm fatigue in 2025 but avoided IL. Clean structural record entering 2026.

Current ERA (2026)

4.28

Durability Risk Profile

Woo has stabilized his health and profiles as a high-reliability No. 2 starter. Low current risk.

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Injury History

Strained oblique (02/26/26). Activated. Activated.

Current ERA (2026)

1.54

Durability Risk Profile

Bryce Miller is currently listed by FanGraphs with strained oblique and a status of Activated. Monitor post-activation workload and role stability before projecting a normal workload.

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Injury History

Verified on the Seattle Mariners active roster via MLB on 2026-05-28.

Current ERA (2026)

3.52

Durability Risk Profile

No manual injury-risk note available yet. Queue for the next injury-research pass before publishing durability claims.

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Injury History

Verified on the Seattle Mariners active roster via MLB on 2026-05-28.

Current ERA (2026)

2.30

Durability Risk Profile

No manual injury-risk note available yet. Queue for the next injury-research pass before publishing durability claims.

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Injury History

Verified on the Seattle Mariners active roster via MLB on 2026-05-28.

Current ERA (2026)

3.28

Durability Risk Profile

No manual injury-risk note available yet. Queue for the next injury-research pass before publishing durability claims.

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Injury History

Shoulder inflammation (04/29/26). Activated. Activated.

Current ERA (2026)

2.00

Durability Risk Profile

Gabe Speier is currently listed by FanGraphs with shoulder inflammation and a status of Activated. Monitor post-activation workload and role stability before projecting a normal workload.

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Injury History

Generally healthy. Elite command-oriented mechanics reduce arm stress. No major arm injuries.

Current ERA (2026)

4.07

Durability Risk Profile

Kirby is a low-risk durability asset. His mechanical efficiency suggests long-term stability.

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Injury History

Verified on the Seattle Mariners active roster via MLB on 2026-05-28.

Current ERA (2026)

2.87

Durability Risk Profile

No manual injury-risk note available yet. Queue for the next injury-research pass before publishing durability claims.

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Injury History

Remarkably durable career. Consistent 200+ IP seasons. No major arm injuries on record.

Current ERA (2026)

3.62

Durability Risk Profile

Gilbert is the gold standard for rotation durability. Extremely low injury risk based on long-term iron-man workload.

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Injury History

Verified on the Seattle Mariners active roster via MLB on 2026-05-28.

Current ERA (2026)

5.00

Durability Risk Profile

No manual injury-risk note available yet. Queue for the next injury-research pass before publishing durability claims.

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Injury History

Lat inflammation (04/29/26). Activated. Activated.

Current ERA (2026)

0.54

Durability Risk Profile

Matt Brash is currently listed by FanGraphs with lat inflammation and a status of Activated. Monitor post-activation workload and role stability before projecting a normal workload.

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Injury History

Tommy John surgery (01/23/26). 60-Day IL. Out for 2026 season.

Durability Risk Profile

Devastating spring failure for Evans. Recovery targets a 2027 return.

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Injury History

Strained lat (03/23/26). 60-Day IL. No timetable for return.

Durability Risk Profile

Carlos Vargas is currently listed by FanGraphs with strained lat and a status of 60-Day IL. Monitor rehab reports and activation timing before projecting a normal workload.

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