There were former major champions, seasoned veterans, and long bombers dominating the leaderboard all week, but it was a kid from Cal who swooped in with a final round 64 to win the 102nd PGA Championship at San Francisco’s Harding Park Golf Coursed. 23 year-old Collin Morikawa finished 13-under for the week, good enough for a two stroke win over 2016 U.S. Open...