Explaining the rules video that almost threw the Masters into chaos

Golf’s most annoying rules have a nasty habit of rearing their its head in golf’s most high-profile events. Dustin Johnson was infamously penalized during last year’s U.S. Open but, thankfully, it didn’t cost him the victory. Lexi Thompson wasn’t so lucky. She was penalized four shots during last week’s ANA Inspiration, which eventually cost her…