Charlotte

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Phil Mickelson chips to the 16th green during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Bob Leverone)

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Rickie Fowler watches his tee shot on the 12th hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)

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Jonas Blixt, of Sweden, chips to the 12th green during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)

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Rickie Fowler hits his approach shot on the 10th hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)

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Vijay Singh watches his tee shot on the second hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Bob Leverone)

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Hideki Matsuyama, of Japan, lines up a putt on the 18th hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Bob Leverone)

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Sang-Moon Bae, of South Korea, watches his tee shot on the sixth hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Bob Leverone)

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Rickie Fowler places his ball on the 11th green during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)

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Rory McIlroy watches his tee shot on the 11th hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)

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Webb Simpson watches his tee shot on the third hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)

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Angel Cabrera, of Argentina, watches his tee shot on the seventh hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Bob Leverone)

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Phil Mickelson hits from a sand trap on the fourth hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)

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Phil Mickelson watches his approach shot on the fourth hole during the first round of the Wells Fargo Championship golf tournament in Charlotte, N.C., Thursday, May 1, 2014. (AP Photo/Chuck Burton)