Watch 19-year-old Hungarian swimmer shatter Michael Phelps' world record in 200 butterfly - USA TODAY

Watch 19-year-old Hungarian swimmer shatter Michael Phelps' world record in 200 butterfly  USA TODAY

Michael Phelps owned the world record in the 200-meter butterfly for 18 straight years. And now, thanks to 19-year-old Hungarian swimmer Kristof Milak, it's ...