Deontay Wilder remains undefeated with knockout of Malik Scott

Wilder, a Tuscaloosa, Ala., native who didn't start fighting until he was 21, is the last American boxer to medal in an Olympics. He won bronze in Beijing in

Wilder, a Tuscaloosa, Ala., native who didn't start fighting until he was 21, is the last American boxer to medal in an Olympics. He won bronze in Beijing in 2008.