Henrik Stenson of Sweden hits his tee shot on the 17th hole Thursday during the first round of the U.S. Open at Chambers Bay. Stenson finished with a 65. The Associated Press

Dustin Johnson hits from the fairway on the second hole during the first round of the U.S. Open Thursday at Chambers Bay. Johnson finished the day tied for first at 5 under par. The Associated Press

Tiger Woods and and his playing partner Rickie Fowler shake hands after a terrible first round for both players. Woods shot a 10-over-par 80 – and beat Fowler by a stroke.

Ben Martin hits his tee shot on the seventh hole at Chambers Bay on Thursday. Martin finished two shots off the lead with a 67.

Gary Woodland hits out of the bunker on the 15th hole during the first round of the U.S. Open golf tournament at Chambers Bay on Thursday in University Place, Wash.

Phil Mickelson hits his tee shot on the third hole during the first round of the U.S. Open golf tournament at Chambers Bay on Thursday in University Place, Wash.

Amateur Cole Hammer hits out of the bunker on the fifth hole during a practice round for the U.S. Open golf tournament at Chambers Bay on Tuesday in University Place, Wash. He is one of the youngest players ever to qualify.

Rory McIlroy of Northern Ireland stands on the fairway on the 16th hole during the first round of the U.S. Open golf tournament at Chambers Bay on Thursday in University Place, Wash.

Rory McIlroy of Northern Ireland watches his tee shot on the 12th hole during the first round of the U.S. Open golf tournament at Chambers Bay on Thursday in University Place, Wash.

Shunsuke Sonoda of Japan hits out of the bunker on the 13th hole during the first round of the U.S. Open golf tournament at Chambers Bay on Thursday in University Place, Wash.

Gunn Yang, an amateur player from South Korea, reacts to his putt on the 18th hole during the first round of the U.S. Open golf tournament at Chambers Bay on Thursday in University Place, Wash.

Rory McIlroy of Northern Ireland stands on the fairway on the 16th hole during the first round of the U.S. Open golf tournament at Chambers Bay on Thursday in University Place, Wash.

Tiger Woods walks off the 17th green during Thursday’s first round of the U.S. Open at Chambers Bay in Washington. He isn’t likely to play this weekend, after an 80 on Thursday.