The U.S. Open

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Rory Mcilroy, of Ireland, reacts after putting on the 18th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Paul Casey, of England, reacts after his birdie on the 18th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Rickie Fowler hits on the 11th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Rickie Fowler acknowledges the crowd after his first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Rickie Fowler hits from the 13th tee during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Harris English hits from a bunker on the ninth hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Henrik Stenson, of Sweden, hits a shot on the sixth hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Lucas Glover hits from the rough on 18 during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Fans walk near the 17th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)

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Jordan Niebrugge hits on the fifth hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)

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Ernie Els, of South Africa, hits from the 18th fairway during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Ernie Els, of South Africa, reacts after the 18th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Ernie Els, of South Africa, putts on the 17th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)

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Ernie Els, of South Africa, on the 16th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)

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Jordan Spieth reacts after missing a putt on the eighth hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Jordan Spieth reacts after missing a putt on the 17th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Dustin Johnson reacts to a shot on the 10th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Dustin Johnson hits on the 13th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Dustin Johnson hits out of the fescue on the 17th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Dustin Johnson hits out of the fescue on the 17th hole during the first round of the U.S. Open golf tournament Thursday, June 15, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)