African-Americans have had a prominent and honorable role in the sport since the early 1900's -- up to and after the introduction of Jackie Robinson into in the Majors in 1947 -- however, it seems that the numbers are shrinking for them, and the sport is dying.
As an African-American myself, I see it not only of the field, but in the stands, in some front offices, and in management. As much as sports is the great eqaualizer in a lot of cases -- it mirrors American life, literally.