Due to its immense, global popularity, soccer has become something of an international language for sports fans. Even the most beloved sport in the world, however, isn't immune to its share of controversy, with stars like Mario Balotelli and Jozy Altidore finding themselves as victims of racist behavior from ignorant spectators even today. ESPN's Wright Thompson goes in on the issue and unearths the roots of soccer's unfortunate dark side. Check it out here.