Carlos Balderas

The 19-year-old grandson of a migrant worker who left Oaxaca, Mexico, for California, Balderas, at 132 pounds, will try to get the U.S. back to the men's boxing podium; the country failed to medal in 2012 for the first time in a century.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide — from Peter King, Tom Verducci, Lee Jenkins, Grant Wahl, Andy Staples and more — delivered straight to you, along with up-to-the-minute news and live scores.