Mariners call up top pitching prospect Kade Anderson for debut
Yahoo Sports • 1 min read • Latest: Aug 20, 2026, 11:35 PM
Last updated Aug 20, 2026

The Seattle Mariners are set to promote left-handed pitcher Kade Anderson to the Major Leagues, with his debut scheduled for Saturday, August 23, against the Chicago Cubs. Anderson, regarded as one of the top pitching prospects in baseball, has excelled with Double-A Arkansas, posting impressive ERA and FIP numbers. His performance comes after the Mariners experienced challenges against potent offenses during a recent road trip. The decision to bring up Anderson is strategically timed with the recent service time deadline, allowing him to maintain rookie eligibility for the 2027 season. Mariners president of baseball operations Jerry Dipoto indicated that Anderson will be used as a starter rather than in relief.
- •Kade Anderson is making his Major League debut on August 23.
- •He has dominated with Double-A Arkansas, with a 1.06 ERA.
- •Promoting Anderson allows the Mariners to maintain his rookie eligibility.
- •President Jerry Dipoto stated Anderson will start, not relieve.
- 11:35 PMYahoo Sports — Mariners to promote top prospect Kade Anderson to Major Leagues
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