Noah Lyles shares motivational message after wild gold-medal victory: 'Why not you!'

Noah Lyles knows how to back up his talk.

The 27-year-old sprinter became the first American to win gold in the men's 100-meter since Justin Gatlin did so in 2004.

Lyles took home the victory in an epic photo finish in which he won by five-thousandths of a second. It was his first Olympic gold.

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Lyles is best known for his colorful personality and one who wears his emotions on his sleeve; before the opening ceremony, he...