The Pga Championship

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Dustin Johnson watches hit tee shot on the 16th hole during a practice round at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Jordan Spieth walks onto the 15th green during a practice round at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Jordan Spieth hits from a bunker to the 15th green during a practice round at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Rory McIlroy, of Northern Ireland, arrives for a news conference at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Rory McIlroy, of Northern Ireland, speaks during a news conference at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Rory McIlroy of Northern Ireland, smiles after a practice round at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Rory McIlroy of Northern Ireland, sign autographs after a practice round at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Phil Mickelson hits his tee shot on the 18th hole during a practice round at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Phil Mickelson lines up a putt on the 17th hole during a practice round at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Jonas Blixt, of Sweden, hits from the bunker on the 18th hole during a practice round for the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Rickie Fowler signs autographs on the 18th hole during a practice round for the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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PGA Tour commissioner Jay Monahan speaks as Peter Bevacqua, CEO of the PGA of America, listens during a news conference at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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PGA Tour Commissioner Jay Monahan speaks during a news conference at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)

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Peter Bevacqua, CEO of the PGA of America, talks during a news conference as PGA Tour commissioner Joy Monahan looks on at the PGA Championship golf tournament at the Quail Hollow Club Tuesday, Aug. 8, 2017, in Charlotte, N.C. (AP Photo/Chris Carlson)