Sports ‘Starting to hit home:’ Percent of Blacks in MLB still low, but there are signs of growth August 14, 2020Bob Nightengale, USA TODAYComments Off on ‘Starting to hit home:’ Percent of Blacks in MLB still low, but there are signs of growth The Black population in MLB is nearly 8%, with the Seattle Mariners having a record 10 Black players on their team in USA TODAY'S annual study.