Baseball was originally segregated, with African Americans barred from playing in the major leagues with white players. As a result, African Americans formed their own Negro Leagues. Jackie Robinson broke the color barrier when he joined the Brooklyn Dodgers in 1947. Other star players in the Negro Leagues included Satchel Paige, who was one of the best pitchers but his statistics were not officially recorded. The New York Yankees featured some of baseball's best players like Babe Ruth and Lou Gehrig, though Gehrig's career was cut short by Lou Gehrig's disease, now known as ALS, for which there is still no cure.