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China v United States

CHESTER, PA - MAY 27: Abby Wambach #20 of the USA heads the ball during the game against the China at PPL Park on May 27, 2012 in Chester, Pennsylvania. USA won 4-1. (Photo by Drew Hallowell/Getty Images)

U.S. soccer star Abby Wambach

Abby Wambach and the U.S. women's soccer team are aiming for a third straight gold medal at the London Olympics.