Morgan was the youngest player on the U.S. national team that placed second in the 2011 FIFA Women's World Cup. On July 13, 2011, she scored her first FIFA Women's World Cup goal in the 82nd minute of the semi-final matchup against France, giving the USA a 3–1 lead and ultimately, the victory. She scored the first goal (69') in the FIFA World Cup Final against Japan after coming on as a substitute at the half, as well as assisting on the Abby Wambach header (104') for a goal in extra time.