99th PGA Championship: Thursday

The Wanamaker Trophy on the first tee during Round One for the 99th PGA Championship held at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Montana Pritchard/PGA of America via Getty Images)

Jordan Spieth of the United States plays his shot on the 10th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Mike Ehrmann/Getty Images)

Swimmer Michael Phelps and his wife Nicole Johnson look on during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Ross Kinnaird/Getty Images)

Brooks Koepka of the United States plays his shot on the 10th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Mike Ehrmann/Getty Images)

Sergio Garcia of Spain lines up a putt on the 10th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Mike Ehrmann/Getty Images)

Ernie Els of South Africa plays his shot from the tenth tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Mike Ehrmann/Getty Images)

Bubba Watson of the United States plays his shot from the 13th tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Ross Kinnaird/Getty Images)

Andy Sullivan of England plays his shot out of the bunker on the fifth hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Streeter Lecka/Getty Images)

Dustin Johnson of the United States plays his shot from the 11th tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Ross Kinnaird/Getty Images)

CHARLOTTE, NC - AUGUST 10: Ian Poulter of England plays his shot out of the bunker on the 10th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Warren Little/Getty Images)

CHARLOTTE, NC - AUGUST 10: Jordan Spieth of the United States lines up a putt on the 10th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Ross Kinnaird/Getty Images)

CHARLOTTE, NC - AUGUST 10: Ian Poulter of England and Ernie Els of South Africa talk on the 17th green during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Warren Little/Getty Images)

CHARLOTTE, NC - AUGUST 10: Thomas Pieters of Belgium plays his shot out of the bunker on the fifth hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Streeter Lecka/Getty Images)

CHARLOTTE, NC - AUGUST 10: Jordan Spieth of the United States reacts to his putt on the 14th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Mike Ehrmann/Getty Images)

CHARLOTTE, NC - AUGUST 10: Dustin Johnson of the United States lines up a putt on the 14th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Stuart Franklin/Getty Images)

CHARLOTTE, NC - AUGUST 10: Ernie Els of South Africa plays his shot on the first green during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Sam Greenwood/Getty Images)

CHARLOTTE, NC - AUGUST 10: Jason Day of Australia lines up a putt on the 16th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Stuart Franklin/Getty Images)

CHARLOTTE, NC - AUGUST 10: Hideki Matsuyama of Japan plays his shot from the 18th tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Ross Kinnaird/Getty Images)

CHARLOTTE, NC - AUGUST 10: Thorbjorn Olesen of Denmark plays his shot from the 17th tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Ross Kinnaird/Getty Images)

CHARLOTTE, NC - AUGUST 10: Gary Woodland of the United States plays his shot from the 15th tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Stuart Franklin/Getty Images)

CHARLOTTE, NC - AUGUST 10: Jason Dufner of the United States plays his shot out of the bunker on the second hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Sam Greenwood/Getty Images)

CHARLOTTE, NC - AUGUST 10: Jon Rahm of Spain plays his shot on the fourth hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Streeter Lecka/Getty Images)

CHARLOTTE, NC - AUGUST 10: Phil Mickelson of the United States reacts to his shot on the second hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Sam Greenwood/Getty Images)

CHARLOTTE, NC - AUGUST 10: Rory McIlroy of Northern Ireland plays his shot from the eighth tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Mike Ehrmann/Getty Images)

CHARLOTTE, NC - AUGUST 10: Rickie Fowler of the United States reacts to his putt on the 15th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Stuart Franklin/Getty Images)

CHARLOTTE, NC - AUGUST 10: Rory McIlroy of Northern Ireland and Rickie Fowler of the United States prepare to tee off on the 16th tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Stuart Franklin/Getty Images)

CHARLOTTE, NC - AUGUST 10: Kevin Kisner of the United States plays his shot from the eighth tee during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Mike Ehrmann/Getty Images)

CHARLOTTE, NC - AUGUST 10: Rickie Fowler of the United States putts on the fourth green during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Warren Little/Getty Images)

CHARLOTTE, NC - AUGUST 10: D.A. Points of the United States reacts on the 18th hole during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Stuart Franklin/Getty Images)

CHARLOTTE, NC - AUGUST 10: Justin Rose of England walks across the 13th hole bridge during the first round of the 2017 PGA Championship at Quail Hollow Club on August 10, 2017 in Charlotte, North Carolina. (Photo by Sam Greenwood/Getty Images)