There's a four-way tie for the lead at the U.S. Open.

   Brooks Koepka bogeyed the par-3 sixth after hitting his tee shot near the grandstand and fell to 7 under. He's tied with Brian Harman, Tommy Fleetwood and Paul Casey.

   Hideki Matsuyama had quite a day at Erin Hills. Chez Reavie, too.
   Matsuyama and Reavie each shot a 7-under 65 in the second round of the U.S. Open. Matsuyama moved into a tie for eighth at 5 under, and Reavie was 4 under in a tie for 13th.
   After Matsuyama and Reavie, the next best round of the day was Bill Haas' 68.
   Paul Casey, Brian Harman, Tommy Fleetwood and Brooks Koepka are tied for the lead at 7 under.
   Matsuyama birdied six of his first eight holes. Reavie had five birdies in a six-hole stretch beginning on No. 11.

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