Brooks Koepka smiles during a news conference at the PGA Championship golf tournament at the Quail Hollow Club Thursday, April 13, 2017, in Charlotte, N.C. (AP Photo/John Bazemore)
Brooks Koepka poses with the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)
Brooks Koepka poses with the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)
Brooks Koepka is congratulated by caddie Ricky Elliot after the fourth round of the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)
Brooks Koepka poses with the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)
Brooks Koepka walks away with the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)
Brooks Koepka poses with the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)
Brooks Koepka poses with the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)
Brooks Koepka poses with the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)
Brooks Koepka kisses the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)
Brooks Koepka kisses the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)
Brooks Koepka reacts on the 18th 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)
Brooks Koepka gets emotional during the trophy presentation of the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)
Brooks Koepka holds up the winning trophy after the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)
Brooks Koepka reacts on the 18th 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)
Brooks Koepka reacts on the 18th 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)
Brooks Koepka lines up a putt on the 16th 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)
Brooks Koepka hits from the 15th tee 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)
Brooks Koepka reacts as he birdies the 16th 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)
Brooks Koepka reacts after his birdie on the 15th 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)