Golf Digest's Ryan Herrington, Joel Beall and Alex Myers take a look at the early storylines playing out on the eve of the 117th U.S. Open. Among the talking points: Erin Hills as a first-time major venue, Phil Mickelson's scheduling conflict, the USGA championship woes, DJ going for the repeat, Rory McIlroy, Jordan Spieth and a few Erin Hills sleepers.