ARDMORE, Pa. —
“I should have done better,” Donald said. “It was disappointing, but I’ll take the positives out of today — a really solid 16 holes of golf, and I’m only two back.”
Hunter Mahan let his spectacular back nine filled with four birdies go to waste with a bogey-bogey finish for a 69. He will be in the final group for the first time in a major with Mickelson, whom he considers a close friend.
Former Masters champion Schwartzel also went bogey-bogey at the end of his round for a 69. Stricker made a 10-foot par putt on the 18th hole to complete a 70 and perhaps the steadiest round of the day. His only mistake in a round that lasted 5 1/2 hours under sunshine was a tee shot into the water on the par-3 ninth for a double bogey.
At 46, Stricker can become the oldest U.S. Open champion.
“I’ve got to play smart golf ... not make any mistakes,” he said. “I think that’s the biggest thing. And it’s a course where it’s tough to come back.”
Billy Horschel, tied with Mickelson at the start of the third round, kept his emotions in check and shot 72. He was two shots behind, along with Donald and Justin Rose, who also had a bogey-bogey finish. Rose thought his shot into the 17th was pure until it ran through the green into a sticky lie in the rough.