What happened: The Seattle Mariners recognized infielder Michael Arroyo on his birthday Tuesday. Arroyo joined the major league roster late in the 2026 season following a September call-up.

Why it matters: Arroyo remains part of Seattle's young depth heading into the offseason. The organization continues to evaluate its internal infield options ahead of winter roster deadlines.

What to watch: Seattle will finalize its 40-man roster protections ahead of the upcoming winter meetings.