The newly crowned U.S. Open champion at Oakmont opened up to NBC4's David DeGuzman about his health journey, which included a diabetes misdiagnosis.

J.J. Spaun's win at the U.S. Open was one of the best sports moments of the year. It was also full of teaching moments.

The professional golfer talks about performing under pressure and sinking a 64-foot putt to earn his first major championship ...