Mariners to Wear Seattle Steelheads Uniforms May 16 vs. Boston

MLB and MiLB Teams Plan Throwbacks for Juneteenth

Former Seattle Supersonics basketball player Freddy Brown points toward home after throwing out the first pitch before a baseball game between the Seattle Mariners and the Los Angeles Angels, Sunday, June 19

Seattle Mariners unveil new spring training uniforms

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

Julio Rodriguez Game-Used Steelheads Uniform - Jersey, Pants, Cap

Wayback Machine: A legacy of black baseball - Sportspress Northwest

Former Seattle Supersonics basketball player Freddy Brown points toward home after throwing out the first pitch before a baseball game between the Seattle Mariners and the Los Angeles Angels, Sunday, June 19

Julio Rodriguez Game Used Seattle Steelheads Uniform - 6/17/23

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

Seattle Mariners' Dustin Ackley connects with a pitch for a double against the Boston Red Sox in a baseball game on Saturday, May 16, 2015, in Seattle. Both teams are wearing uniforms

Remembering the Steelheads, Seattle's Negro League Team - Seattle magazine

Red Sox, Mariners To Wear Negro League Throwbacks May 16 In Seattle (Photos)