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The U.S. would've found itself lower on this list had it not been for Alex Morgan's game-winning header in the Olympic women's soccer semifinal game. The heralded 23-year-old helped the American squad overcome a late deficit to defeat Canada, 4-3.
Morgan and her teammates will face Japan in a gold-medal matchup that presents an opportunity for American revenge. The U.S. women lost to Japan in the 2011 FIFA Women's World Cup final, falling in heartbreaking fashion on penalty kicks.
Women's soccer heroics highlighted the day, but there is plenty more to focus on.
Michael Tinsley took silver in the men's 100-meter hurdles, while Jenn Suhr unseated legendary Russian Yelena Isinbayeva for first in the women's pole vault. Suhr settled for silver behind Isinbayeva at the 2008 Beijing Games.
American Matt Emmons won bronze in the men's 50-meter rifle, three positions final.
In men's basketball, the U.S. rebounded from a Saturday's scare against Lithuania to pummel Argentina in its final game of group play.
Female boxers Marlen Esparza and Claressa Shields each advanced to semfinal matches in the inaugural Olympic women's boxing tournament. It's a positive step for the U.S. after a disappointing men's boxing run in London.
"It feels good, and I know that the USA needed it badly," Esparza told the Associated Press.