That's Branch Rickey and Jackie Robinson, of course. From the WSJ:
In his own life, Rickey generally justified his decision as sound business strategy. "The Negroes will make us winners for years to come," he said, "and for that I will happily bear being called a bleeding heart and a do-gooder and all that humanitarian rot."
That's not the whole story, of course. But Rickey was right about untapped talent. With the black athletes Rickey signed, Brooklyn went on to win a string of National League pennants. Other teams copied his business model by signing their own black players. And thus was Jim Crow dealt a crippling blow—at a time when lunch counters were still segregated and the Civil Rights Act was two decades off.