Seattle Mariners honor the Negro Leagues with Seattle Steelheads

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Steelheads Alley (@steelheadsalley) • Instagram photos and videos

The Mariners are these wearing throwback uniforms vs the Rays today to honor the Seattle Steelheads, a former Negro League team : r/baseball

Mariners celebrate Juneteenth by honoring those pioneers who blazed a trail 75 years ago