Kevin Na is 34 years old, which means he still has plenty of golf ahead of him. It also means that he's been a professional golfer for half his life. Na turned pro as a junior in high school, "because I wanted to make some money," he said, jokingly, to Alan Shipnuck. The two dive deep on a number of topics that Na has faced in his career, like slow play, his struggles with the yips, his lone career victory, and much more.