Lydia Ko

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Eric Trump, right, watches as professional golfer Lydia Ko, of New Zealand, putts prior to the start of a news conference previewing the U.S. Women's Open Championship golf tournament at Trump National Golf Club, Wednesday, May 24, 2017, in Bedminster, N.J. (AP Photo/Julio Cortez)

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Eric Trump, top left, talks to professional golfers Cristie Kerr, top right, and Lydia Ko prior to the start of a news conference previewing the U.S. Women's Open Championship at Trump National Golf Club, Wednesday, May 24, 2017, in Bedminster, N.J. (AP Photo/Julio Cortez)

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Lydia Ko, of New Zealand, watches her tee shot on the ninth hole during the second round of the Kingsmill Championship LPGA golf tournament in Williamsburg, Va., Friday, May 19, 2017. Ko finished with a second round 67 leaving her 8-under-par for the two rounds. (AP Photo/Steve Helber)

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Lydia Ko, of New Zealand, reacts to a missed birdie on the ninth hole during the second round of the Kingsmill Championship LPGA golf tournament in Williamsburg, Va., Friday, May 19, 2017. Ko finished with a second round 67 leaving her 8-under-par for the two rounds. (AP Photo/Steve Helber)

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Lydia Ko hits out of a bunker on the first hole during the third round of the LPGA Tour's ANA Inspiration golf tournament at Mission Hills Country Club on Saturday, April 1, 2017, in Rancho Mirage, Calif. (AP Photo/Chris Carlson)

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Lydia Ko watches her tee shot on the 16th hole during the wind delayed first round of the LPGA Tour ANA Inspiration golf tournament at Mission Hills Country Club Friday, March 31, 2017 in Rancho Mirage, Calif. (AP Photo/Chris Carlson)

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Lydia Ko hits out of the bunker on the 17th hole during the wind-delayed first round of the LPGA Tour ANA Inspiration golf tournament at Mission Hills Country Club Friday, March 31, 2017 in Rancho Mirage, Calif. (AP Photo/Chris Carlson)

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Lydia Ko, of New Zealand, watches her tee shot on the fourth hole during the first round of the ShopRite LPGA Classic golf tournament in Galloway Township, N.J., Friday, May 30, 2014. (AP Photo/Mel Evans)

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Lydia Ko, of New Zealand, watches her tee shot on the fifth hole during the final round of the Kingsmill Championship golf tournament at the Kingsmill resort in Williamsburg, Va., Sunday, May 18, 2014. (AP Photo/Steve Helber)

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Lydia Ko, of New Zealand, grimaces as she missed a putt on the ninth green during the final round of the Kingsmill Championship golf tournament at the Kingsmill resort in Williamsburg, Va., Sunday, May 18, 2014. (AP Photo/Steve Helber)

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Lydia Ko of New Zealand reacts on the 18th green of the Lake Merced Golf Club after winning the Swinging Skirts LPGA Classic golf tournament on Sunday, April 27, 2014, in Daly City, Calif. Ko won the event after shooting a 3-under-par 69 to finish at 12-under-par. At left is her caddie Domingo Jojola. (AP Photo/Eric Risberg)

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Lydia Ko of New Zealand follows her drive from the 17th tee of the Lake Merced Golf Club during the final round of the Swinging Skirts LPGA Classic golf tournament on Sunday, April 27, 2014, in Daly City, Calif. Ko won the event after shooting a 3-under-par 69 to finish at 12-under-par. (AP Photo/Eric Risberg)

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Lydia Ko of New Zealand reacts on the 18th green of the Lake Merced Golf Club after winning the Swinging Skirts LPGA Classic golf tournament on Sunday, April 27, 2014, in Daly City, Calif. Ko won the event after shooting a 3-under-par 69 to finish at 12-under-par. At left is her caddie Domingo Jojola. (AP Photo/Eric Risberg)

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Lydia Ko of New Zealand holds up her trophy on the 18th green of the Lake Merced Golf Club after winning the Swinging Skirts LPGA Classic golf tournament on Sunday, April 27, 2014, in Daly City, Calif. Ko won the event after shooting a 3-under-par 69 to finish at 12-under-par. (AP Photo/Eric Risberg)

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Stacy Lewis, left, greets Lydia Ko, right, of New Zealand on the 18th green of the Lake Merced Golf Club after the final round of the Swinging Skirts LPGA Classic golf tournament on Sunday, April 27, 2014, in Daly City, Calif. Ko won the event after shooting a 3-under-par 69 to finish at 12-under-par and Lewis finished second. (AP Photo/Eric Risberg)

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Lydia Ko of New Zealand reacts on the 18th green of the Lake Merced Golf Club after winning the Swinging Skirts LPGA Classic golf tournament on Sunday, April 27, 2014, in Daly City, Calif. Ko won the event after shooting a 3-under-par 69 to finish at 12-under-par. At left is her caddie Domingo Jojola. (AP Photo/Eric Risberg)