Shane Lowry began the final day of the U.S. Open by making two birdies to cap off a 5-under 65 and take a four-shot lead into the final round.
Lowry made a 12-foot birdie putt on No. 15 and hit a superb wedge out of the thick grass framing a bunker to 7 feet for birdie on No. 17. He finished with a 6-foot par putt on the 18th and a pump of the fist.
The 29-year-old Irishman was at 7-under 203, four shots clear of Dustin Johnson (71) and Andrew Landry (70), who is trying to become the first player in more than a century to win the U.S. Open in his first try.
Lee Westwood and Daniel Summerhays each had 69 and were five back.