Dell Technologies

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Dustin Johnson lines up his putt on the third green during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Bubba Watson watches his drive on the first hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Jordan Spieth hits on the second hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Dustin Johnson lines up his putt on the first hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Dustin Johnson takes a drop from a hazard on the second hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Dustin Johnson watches his tee shot on the second hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Phil Mickelson watches his tee shot on the eighth hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Hideki Matsuyama, of Japan, watches his tee shot on the second hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Thursday, March 23, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Dustin Johnson watches his shot from the first tee during round-robin play against Webb Simpson at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Hideki Matsuyama of Japan hits to the on the sixth green during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Jordan Spieth plays his shot from the third tee during round-robin play against Hideto Tanihara of Japan at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Rory McIlroy, of Northern Ireland, watches his drive on the first hole during round-robin play against Soren Kjeldsen of Denmark at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Phil Mickelson hits to the green on the second hole during round-robin play against Si Woo Kim, of South Korea, at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Phil Mickelson takes a drop from a hazard on the second hole during round-robin play against Si Woo Kim, of South Korea, at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Dustin Johnson lines up a putt on the sixth hole during round-robin play against Webb Simpson at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. (AP Photo/Eric Gay)

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Jason Day, of Australia, watches his tee shot on the sixth hole during round-robin play against Pat Perez at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. Day conceded the match after the sixth hole and withdrew from the tournament. (AP Photo/Eric Gay)

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Defending champion Jason Day, of Australia, watches his putt on the sixth hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. Day conceded to Pat Perez after the hole and withdrew from the tournament. (AP Photo/Eric Gay)

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Defending champion Jason Day, right, of Australia, walks down the seventh hole after he conceded to Pat Perez after six holes of play during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. Day also withdrew from the tournament. (AP Photo/Eric Gay)

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Defending champion Jason Day of Australia plays a shot from a bunker on the sixth hole during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. Day conceded to Pat Perez after the hole and withdrew from the tournament. (AP Photo/Eric Gay)

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Defending champion Jason Day, center, of Australia, center, down the seventh hole after he conceded to Pat Perez after six holes of play during round-robin play at the Dell Technologies Match Play golf tournament at Austin County Club, Wednesday, March 22, 2017, in Austin, Texas. Day also withdrew from the tournament. (AP Photo/Eric Gay)