Mariners call up top pitching prospect Kade Anderson
The Seattle Mariners are calling up left-hander Kade Anderson, rated the leading pitching prospect in baseball, to start against the Chicago Cubs on Saturday, ESPN and CBS Sports reported. The 22-year-old recorded a 1.06 earned-run average in the minor leagues this season as Seattle's postseason hopes fade.
Why it matters
The promotion gives Seattle's top prospect an immediate major-league test while the club tries to revive its playoff campaign.
Sources
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Part of the August 21, 2026 brief.