Why do you suppose troy might have these feelings?

The argument between Cory and Troy in this scene reveals Troy’s deep disappointment with his own sports career. The audience begins to see that this, in part, is one reason Troy is so obstinate about signing a paper for Cory’s scholarship recruitment. Troy played in the Negro Leagues, the segregated baseball league, and he boasts to his son that he and his teammates back then were better than almost all of the white or black major leaguers of the present. Troy feels as though he never really got his chance to show his true talents to the world. He can find no specific cause and so develops his own deep mistrust of the power held over African Americans by white America.