Paul Casey

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Paul Casey hits his second shot on the 18th hole during the third round of the Travelers Championship golf tournament at TPC River Highlands on Saturday, June 24, 2017, in Cromwell, Conn. (Brad Horrigan/Hartford Courant via AP)

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Paul Casey, of England, hits from the second tee during the third round of the U.S. Open golf tournament Saturday, June 17, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Paul Casey, of England, smiles on the ninth hole during the second round of the U.S. Open golf tournament Friday, June 16, 2017, at Erin Hills in Erin, Wis. (AP Photo/Chris Carlson)

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Paul Casey, of England, hits from the 15th tee during the second round of the U.S. Open golf tournament Friday, June 16, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Paul Casey, of England, reacts after missing a putt on the fifth hole during the second round of the U.S. Open golf tournament Friday, June 16, 2017, at Erin Hills in Erin, Wis. (AP Photo/Charlie Riedel)

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Paul Casey, of England, hits on the 14th hole during the second round of the U.S. Open golf tournament Friday, June 16, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Paul Casey, of England, looks at his ball in the fescue on the 14th hole during the second round of the U.S. Open golf tournament Friday, June 16, 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 11th hole during the second round of the U.S. Open golf tournament Friday, June 16, 2017, at Erin Hills in Erin, Wis. (AP Photo/David J. Phillip)

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Paul Casey, of England, hits 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/Charlie Riedel)

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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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Fred Couples fist bumps Paul Casey of England, on the 18th green during the second round of the Masters golf tournament Friday, April 7, 2017, in Augusta, Ga. (AP Photo/Matt Slocum)

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Paul Casey hits from the first fairway during the third round of the Memorial golf tournament Saturday, May 31, 2014, in Dublin, Ohio. (AP Photo/Darron Cummings)

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Paul Casey crosses a bridge on the 14th hole during the second round of the Memorial golf tournament Friday, May 30, 2014, in Dublin, Ohio. (AP Photo/Jay LaPrete)

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Paul Casey chips to the ninth green during the second round of the Memorial golf tournament on Friday, May 30, 2014, in Dublin, Ohio. (AP Photo/Darron Cummings)