U.S. swimmer Bradley Snyder poses with his gold medal after winning the men's 100m freestyle - S11 final at the London 2012 Paralympic Games. Ben Stansall/AFP/Getty Images hide caption

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Tatyana McFadden has won medals at the Paralympic Games in 2004 and 2008. At this year's games in London, she's participating in every wheelchair race from the 100-meter sprint to the marathon. Courtesy of Deborah McFadden hide caption

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Rob Jones and Oksana Masters will compete in adaptive rowing at the London Olympics this week. Jones is a former U.S. Marine who lost both legs to an improvised land mine in southern Afghanistan. David Gilkey/NPR hide caption

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A team of torchbearers brings the Paralympic flame through Piccadilly Circus as the torch heads across London to the Olympic Stadium. The Paralympic Games' opening ceremony will be held Wednesday at 3:30 p.m. ET. LOCOG/Getty Images hide caption

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San Francisco Giants' Melky Cabrera fouls off a pitch. Cabrera was suspended Aug 15 for 50 games without pay after testing positive for high levels of testosterone. Ben Margot/AP hide caption

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Sweetness And Light

Just Say No: Doping Diminishes All Athletes

Athletes aren't always the best role models but, for commentator Frank Deford, the worst sin they can commit is doping.

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Stephen Strasburg of the Washington Nationals pitches against the Atlanta Braves at Nationals Park last week. Patrick McDermott/Getty Images hide caption

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Doctoral student Brett Comstock wears a football uniform as he walks on a treadmill at the Korey Stringer Institute at the University of Connecticut. Craig LeMoult for NPR hide caption

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According to the NFL's Peter O'Reilly, fans are drawn to the Madden NFL video game franchise because it lets them experience the NFL year-round in a realistic way. EA Sports hide caption

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Serena Williams, left, and Venus Williams compete in Wimbledon at the 2012 Summer Olympics. Elise Amendola/AP hide caption

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