This is one of the crazier sights I've ever seen caught on camera at a golf tournament.  As Carl Pettersen takes his backswing on the 5th hole early Friday morning, his ball is ricocheted away by a wayward shot from the neighboring 2nd hole.  And you thought golf was tough enough when the ball was stationary?  

The odds of this happening at a US Open have to be somewhere around one in a trillion.  Kudos to ESPN's production for catching it on tape.

H/T Liam_Jones15