Brooks Koepka

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Brooks Koepka smiles after saving par on the12th hole during the fourth round of the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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CORRECTS SPELLING OF LAST NAME TO KOEPKA, NOT KOPEKA - Brooks Koepka reacts after missing a putt on the third hole during the fourth round of the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)

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CORRECTS SPELLING OF LAST NAME TO KOEPKA, NOT KOPEKA - Brooks Koepka reacts after his birdie on the first hole during the fourth round of the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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CORRECTS SPELLING OF LAST NAME TO KOEPKA, NOT KOPEKA - Brooks Koepka hits from the second tee during the fourth round of the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Dustin Johnson and Brooks Koepka walk on the 13th hole during a practice round for the Masters golf tournament Wednesday, April 5, 2017, in Augusta, Ga. (AP Photo/Charlie Riedel)

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Brooks Koepka hits his tee shot on the second hole during the first round of the Waste Management Phoenix Open golf tournament Thursday, Feb. 2, 2017, in Scottsdale, Ariz. (AP Photo/Ross D. Franklin)