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

Topps has been making baseball cards since 1952, the collector's market is willing to pay top dollar for some of them.

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 ...