Meb Keflezighi

The Eritrean refugee won silver at Athens in 2004, six years after being naturalized as a U.S. citizen. In '14, a year after the Boston Marathon bombings, he become the first American to win that race in three decades. After his fourth-place finish in London, Keflezighi, 41, is striving to be the second American with two marathon medals. (Frank Shorter won gold in 1972 and silver in '76.)

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, Andy Staples, Grant Wahl, and more—delivered straight to you, along with up-to-the-minute news and live scores.