
Flood refused the trade on a matter of principle, arguing that Major League Baseball had violated both U.S. antitrust laws and the 13th Amendment's prohibition of involuntary servitude. In a defiant letter to Commissioner Bowie Kuhn asking for his contractual release, Flood infamously wrote, "after twelve years in the major leagues, I do not feel that I am a piece of property to be bought and sold irrespective of my wishes."
Baseball, Race, and the Demise of the Activist Athlete
by Abraham Iqbal Khan
University Press of Mississippi, 2012