Japan's Hideki Matsuyama could only manage a 1-over 71 at the U.S. Open on Friday, leaving him 10 shots adrift of sole leader Martin Kaymer in a tie for 14th after the second round of play at Pinehurst No. 2.Japan's Hideki Matsuyama could only manage a 1-over 71 at the U.S. Open on Friday, leaving him 10 shots adrift of sole leader Martin Kaymer in a tie for 14th after the second round of play at Pinehurst No. 2.