Mariners’ No. 3 prospect Arroyo has right elbow surgery

September callup expected to be ready for game action in April…

MLB Official

Published: Friday, 30 October 2026 at 9:02 PM

Key Things to Know

Mariners prospect Michael Arroyo underwent right elbow surgery and is out until April.
Arroyo is expected to miss Spring Training and open the 2027 season on the injured list.
Dr. Keith Meister performed the scope procedure to clean up cartilage and brace Arroyo's right UCL.

The Story in 60 Seconds

Seattle Mariners prospect Michael Arroyo underwent right elbow scope surgery to clean up cartilage and brace a chronic UCL injury. Performed by Dr. Keith Meister, the procedure will keep Arroyo sidelined from game action until April. The recovery timeline means the 21-year-old will miss Spring Training and open the 2027 season on the injured list.

Arroyo, ranked as Seattle's No. 3 prospect, posted a .953 OPS across 15 Major League games as a September call-up in 2026. The procedure marks the Mariners' third announced offseason surgery, following earlier operations on Cal Raleigh and Josh Naylor.

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Mariners’ No. 3 prospect Arroyo has right elbow surgery

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