 Leroux received clearance from FIFA to change her allegiance to the United States in 2008 and went on to help the under-20 national team win the 2008 FIFA U-20 Women's World Cup in Santiago, Chile. She scored in the first half of the final against North Korea. She represented the United States at the 2010 FIFA U-20 Women's World Cup and ended her under-20 career as the country's all-time leading scorer in Under-20 Women's World Cup play with 10 goals. At the under-20 level, she is among the country's most capped players with 36 games and is the all-time leading scorer for the U.S. with 30 goals. In 2012, she was named the 2011 U.S. Soccer Young Female Athlete of the Year, playing for both the senior and under-23 national teams.
