He'll cede his spot on the 40-man roster and 26-man active roster to first baseman Jake Bauers, whom the Mariners acquired from Cleveland on Thursday. The 30-year-old Mayfield has served mainly as a backup middle infielder between stints with the Angels and Mariners this season, going 6-for-37 (.162 average) with a 31.6 percent strikeout rate.
Mariners' Jack Mayfield: Dropped from 40-man roster
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