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Caeleb Dressel

Inspired by Ryan Lochte to swim at the University of Florida, Caeleb Dressel has broken NCAA, American and U.S. Open records. His 50-yard free swim in the March 2016 SEC Championships was the fastest in history, at 18.39 seconds. (Getty)

March Madness

The NCAA men's basketball tournament is taking place in the U.S. between the country's top college basketball teams.