Highlights: Horschel steals show at Merion on Day 2


Round 2 at Merion was full of surprises, but none bigger than Billy Horschel's 67 that got him into a share of the lead with Phil Mickelson. They are the only two players under par as the U.S. Open heads to Moving Day. Tiger Woods and Rory McIlroy are four shots back at 3 over. Check out all the highlights below.

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