Answer:
This's for my boy Jackie Robinson, a hero of our nation
Broke the MLB's barriers of segregation
Inspired dark-skinned athletes told 'em they could go achieve
And eliminated any need for the racist negro leagues
Some people didn't like it man he had his share of haters
But even then he kept his cool, produced, and made his paper
Step-by-step explanation:
The best I could come up with on short notice
HTH :)