People are completely missing the point here. It doesn't matter whether TA comparing himself to Jackie Robinson is fine or ridiculous. As a white person, Josh Donaldson doesn't get any say in the matter. None. Given his history with the Sox, if he thinks anything he says to anyone on that team will be interpreted as a joke then he's an incredibly stupid person. Much more likely he was trying to get under TA's skin. He knows it, TA knows it, everybody knows it.