United States Youth Soccer Association - Wikipedia
USA-Soccer – United Soccer Association
UNITED STATES YOUTH SOCCER ASSOCIATION PATCH - USA Shield 00I4
US soccer team wins nail-biter against Netherlands with penalty kicks in Olympics quarterfinal - ABC News
Guide To The U.S. Men's Professional Soccer Pyramid
The Growth of Women's Soccer in the United States
USPSA, Power Wheelchair Sports
U.S. Women's Soccer Team Sues U.S. Soccer for Gender Discrimination - The New York Times