U.S. Open 2013 (51 images)

Ian Poulter lines up a putt on the 17th green during the first round of the 113th U.S. Open Championship at Merion Golf Club in Ardmore, Pennsylvania on June 13, 2013. UPI/Kevin Dietsch

Hiroyuki Fujita hits out of a bunker on the 17th hole during the first round of the 113th U.S. Open Championship at Merion Golf Club in Ardmore, Pennsylvania on June 13, 2013. UPI/Kevin Dietsch

Phil Mickelson walks through the crowd as he goes to the 13th tee box during the first round of the 113th U.S. Open Championship at Merion Golf Club in Ardmore, Pennsylvania on June 13, 2013. UPI/Kevin Dietsch

Phil Mickelson reacts after missing a putt on the 11th green during the first round of the 113th U.S. Open Championship at Merion Golf Club in Ardmore, Pennsylvania on June 13, 2013. UPI/Kevin Dietsch