Sports are America's quintessential pastime and they are surrounded by rituals undertaken by fans — military tributes; Sunday wardrobe traditions; hot dogs and Cracker Jacks; lucky charms; pledging allegiance to the United States. These are all activities that define and inform the various rituals sports fans undertake week after week, season after season — but the significance of these communities and the roles they play in defining what it means to be American is often overlooked. Using literature on patriotism/nationalism, race and citizenship, this dissertation focuses on United States soccer fans and the ways in which they define their soccer fandom and how their soccer fandom defines them. A burgeoning literature has started to explore an extended understanding of Du Bois theory of double consciousness and its importance in understanding racial identities in the United States. The study brings to the discussion how double consciousness is reflected in the way different groups of sports fans express themselves and how they contribute to defining American culture. Using ethnographic fieldwork supplemented with interviews and a survey, this dissertation explores how the American Outlaws – a USA soccer supporter group for the United States National Team and Pancho Villa’s Army – a soccer supporter group dedicated to the Mexican National Team — challenge the conventional American identity and work to create a more nuanced understanding of American culture and Americanism. This ethnography argues that given the accessibility and popularity of sports within the United States – coupled with the patriotic narrative that is a part of supporting both the American National Team and the Mexican National Team – soccer supporter groups expand our understanding of Americanness and belonging within the United States.