Top Photos of the Week: 97th PGA Champ.

SHEBOYGAN, WI - AUGUST 10: A PGA of America rules official sounds a horn after a weather warning was issued during a practice round prior to the 2015 PGA Championship at Whistling Straits on August 10, 2015 in Sheboygan, Wisconsin. (Photo by Tom Pennington/Getty Images)

SHEBOYGAN, WI - AUGUST 12: Rickie Fowler of the United States watches a tee shot during a practice round prior to the 2015 PGA Championship at Whistling Straits on August 12, 2015 in Sheboygan, Wisconsin. (Photo by Tom Pennington/Getty Images)

SHEBOYGAN, WI - AUGUST 12: Flags are seen above a leaderboard during a practice round prior to the 2015 PGA Championship at Whistling Straits on August 12, 2015 in Sheboygan, Wisconsin. (Photo by Jamie Squire/Getty Images)

SHEBOYGAN, WI - AUGUST 12: An osprey sits on the tee sign at the third hole during a practice round prior to the 2015 PGA Championship at Whistling Straits on August 12, 2015 in Sheboygan, Wisconsin. (Photo by Tom Pennington/Getty Images)

SHEBOYGAN, WI - AUGUST 12: (L-R) Rory McIlroy of Northern Ireland and Sergio Garcia of Spain take part in an event to open the OMEGA Lounge during a practice round prior to the 2015 PGA Championship at Whistling Straits on August 12, 2015 in Sheboygan, Wisconsin. (Photo by Andrew Redington/Getty Images)

SHEBOYGAN, WISCONSIN - AUGUST 13: John Daly and caddie on the ninth tee box during Round One at the 97th PGA Championship at Whistling Straits on August 13, 2015 in Sheboygan, Wisconsin. (Photo by Montana Pritchard/The PGA of America via Getty Images)

SHEBOYGAN, WI - AUGUST 13: A drone flies over Lake Michigan during the first round of the 2015 PGA Championship at Whistling Straits on August 13, 2015 in Sheboygan, Wisconsin. (Photo by Kevin C. Cox/Getty Images)

SHEBOYGAN, WI - AUGUST 13: Ian Poulter of England plays his shot from the 14th tee during the first round of the 2015 PGA Championship at Whistling Straits on August 13, 2015 in Sheboygan, Wisconsin. (Photo by Richard Heathcote/Getty Images)

SHEBOYGAN, WI - AUGUST 13: Rory McIlroy of Northern Ireland runs down a patch during the first round of the 2015 PGA Championship at Whistling Straits on August 13, 2015 in Sheboygan, Wisconsin. (Photo by Kevin C. Cox/Getty Images)

SHEBOYGAN, WI - AUGUST 14: Graeme McDowell of Northern Ireland watches his tee shot on the 16th hole during the second round of the 2015 PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, Wisconsin. (Photo by Kevin C. Cox/Getty Images)

SHEBOYGAN, WI - AUGUST 14: This is Major sign at the entrance of the course during Round Two at the 97th PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, Wisconsin. (Photo by Montana Pritchard/The PGA of America via Getty Images)

Golf: PGA Championship Preview: View of shadow of Rory McIlroy on backdrop banner during press conference after Wednesday practice round at Whistling Straits. Kohler, WI 8/12/2015 CREDIT: Robert Beck (Photo by Robert Beck /Sports Illustrated/Getty Images) (Set Number: X159848 TK1 )

Golf: PGA Championship Preview: View of fans of Sergio Garcia fans with GO SERGIO sign aboard boat in Lake Michigan during Wednesday practice round at Whistling Straits. Kohler, WI 8/12/2015 CREDIT: Fred Vuich (Photo by Fred Vuich /Sports Illustrated/Getty Images) (Set Number: X159849 TK1 )

Golf: PGA Championship: Scenic view of Justin Thomas in action, taking second shot on No 17 hole during Thursday play at Straits Course of Whistling Straits. Kohler, WI 8/13/2015 CREDIT: Fred Vuich (Photo by Fred Vuich /Sports Illustrated/Getty Images) (Set Number: X159849 TK2 )

SHEBOYGAN, WI - AUGUST 14: Aaron Rodgers, quarterback of the Green Bay Packers, is seen during the second round of the 2015 PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, Wisconsin. (Photo by Kevin C. Cox/Getty Images)

SHEBOYGAN, WI - AUGUST 14: Tiger Woods of the United States reacts after hitting a shot on the 2nd hole during the second round of the 2015 PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, Wisconsin. (Photo by Kevin C. Cox/Getty Images)

SHEBOYGAN, WI - AUGUST 14: Dustin Johnson of the United States plays his shot from the sixth tee during the second round of the 2015 PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, Wisconsin. (Photo by Tom Pennington/Getty Images)

SHEBOYGAN, WI - AUGUST 14: Tiger Woods of the United States plays his shot from the 13th tee during the second round of the 2015 PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, Wisconsin. (Photo by Mike Ehrmann/PGA of America via Getty Images)

SHEBOYGAN, WISCONSIN - AUGUST 14: Tiger Woods reacts to his previous hit on the sixteenth hole during Round Two at the 97th PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, WI. (Photo by Montana Pritchard/The PGA of America via Getty Images)

SHEBOYGAN, WI - AUGUST 14: Dustin Johnson of the United States walks off of the 15th tee as weather approaches during the second round of the 2015 PGA Championship at Whistling Straits on August 14, 2015 in Sheboygan, Wisconsin. (Photo by Tom Pennington/Getty Images)

SHEBOYGAN, WI - AUGUST 15: Tiger Woods of the United States talks to the media after finishing his weather-delayed second round of the 2015 PGA Championship at Whistling Straits on August 15, 2015 in Sheboygan, Wisconsin. (Photo by Richard Heathcote/Getty Images)

SHEBOYGAN, WI - AUGUST 15: Boaters are seen on Lake Michigan during the third round of the 2015 PGA Championship at Whistling Straits at on August 15, 2015 in Sheboygan, Wisconsin. (Photo by Jamie Squire/Getty Images)

SHEBOYGAN, WI - AUGUST 15: Matt Jones of Australia plays his shot from the eighth tee during the continuation of the weather-delayed second round of the 2015 PGA Championship at Whistling Straits on August 15, 2015 in Sheboygan, Wisconsin. (Photo by Andrew Redington/Getty Images)

SHEBOYGAN, WI - AUGUST 15: Martin Kaymer of Germany on the 16th green during the third round of the 2015 PGA Championship at Whistling Straits at on August 15, 2015 in Sheboygan, Wisconsin. (Photo by Jamie Squire/Getty Images)