Talkin' Baseball on X: The Mariners are honoring the Negro Leagues with Seattle Steelheads uniforms today / X

Seattle Steelheads will be honored by Mariners on Juneteenth

The Mariners are these wearing throwback uniforms vs the Rays

History:  The West Coast Baseball Association was an attempt at a western Negro League competitor, but it only lasted one season. The Seattle entry in the league was actually Abe Saperstein's Harlem Globetrotter baseball team under a new name, that of a local variety of salmon.

Ebbets Field Flannels Seattle Steelheads 1946 Home Jersey

Paul Lukas on X: Mariners planning to wear 1946 Seattle

Terrific Seattle Steelheads Negro League jerseys that the

MLB and MiLB Teams Plan Throwbacks for Juneteenth

Talkin' Baseball on X: The Tigers and Mariners are both rocking

Terrific Seattle Steelheads Negro League jerseys that the

Seattle Mariners unveil City Connect uniforms - ESPN