(CNN) - The number of African Americans in major league baseball has declined.
That's according to research by u-s-a today sports. The study comes as the league celebrated Jackie Robinson day on Sunday.
Robinson was the first black player in the majors since the 1880s. African Americans make up just eight percent of this season's rosters. In 1975, the figure was 27 percent.
In contrast, foreign-born players made up more than 28 percent of the league's opening day rosters this year.
Some say the lack of college scholarships and the rising costs to fund inner city teams, contribute to the small number of African Americans in major league baseball.