Could you imagine sports without the Williams sisters or LeBron James? It's pretty difficult to picture, huh? But, as we all know, there once was a time when black athletes weren't allowed to be on the same playing field as white people. Fortunately, there were African-American players who ignored the racial slurs and death threats that were hurled their way and focused on making the sports world a better, equal place. 

As time progressed, there become exceptional athletes like Michael Jordan and Tiger Woods, who further solidified African-Americans' place among the best to ever play in their respective sport. We take a look at those that forever changed the game, past and present. From the aforementioned names of Jordan and Woods to legends like Jackie Robinson and Althea Gibson, these are 25 Black Athletes Who Changed the World.