Thursday marked the anniversary of Jackie Robinson's 1947 Major League debut for the Brooklyn Dodgers, breaking baseball's color barrier.

Players honor Robinson on April 15 by wearing his No. 42, which has been retired across baseball.

This year more than 100 players went further and donated their April 15 game-day salaries to support the Players Alliance, which works to promote Black participation at every level of organized baseball and promote a more diverse future for the sport.