A special piece of Jackie Robinson memorabilia is about to hit auction ... and TMZ Sports has learned it could fetch over ...

"It bothers me a lot that [sports fans] think of Jackie Robinson and they don't think of us," said Ronald Tanner, 78, of Long Branch, New Jersey, who came out of the historic African American Hill ...

MLB players wore No. 42 on their jerseys and hats Monday, and the Reds' Elly De La Cruz commemorated by wearing custom Jordan 4 cleats in Seattle.

The Diamondbacks celebrate Jackie Robinson's impact in breaking barriers in baseball and inspiring necessary change in the sport and our nation.

Without Jackie Robinson, the game of baseball and the spirit it embodies would not look or feel nearly the same as it does ...