Mexican Americans are residents of the United States who are of Mexican descent. The list includes Mexican immigrants and those who lived in the southwestern United States when the territory was incorporated in 1848. == Sports == === American football === Louie Aguiar – NFL punter Joe Aguirre – NFL tight end Roberto Aguayo – NFL and NCAA Division I placekicker at Florida State University Leo Araguz – NFL kicker and punter Joe Arenas – NFL running back, safety, punt returner and kick returne…