In pictures: The 2019 PGA Championship

Updated 2346 GMT (0746 HKT) May 19, 2019
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Brooks Koepka successfully defended his PGA Championship title after a thrilling finish at Bethpage Black. Jamie Squire/Getty Images
The 29-year-old clinched his fourth major in eight events after overcoming a late wobble at Bethpage. Patrick Smith/Getty Images
Koepka led by seven ahead of the final day but four straight bogeys on the back nine let in his close friend and the then world No.1 Dustin Johnson, who narrowed the gap to one. Ross Kinnaird/Getty Images
England's Matt Wallace was in the chasing pack well behind the leading two at Bethpage. Ross Kinnaird/Getty Images
Popular veteran Phil Mickelson is a fan favorite in New York. Christian Petersen/PGA of America/Getty Images
Koepka said the back nine was "very stressful" as he battled his own mistakes and the pressure exerted by Johnson. Stuart Franklin/Getty Images
Japan's Hideki Matsuyama of Japan chips onto the 13th green during the final round of the PGA Championship. Seth Wenig/AP
Tyrrell Hatton of England makes a shot out of the rough amidst the gallery on the ninth hole during the final round. John Jones/Icon Sportswire/Getty Images
Three-time champion Jordan Spieth finished tied third to reignite his major form after a slump of late. John David Mercer/USA TODAY Sports
Johnson faltered coming home and has now finished runner-up in all four of golf's major tournaments. Patrick Smith/Getty Images
Brooks Koepka drives off the 12th tee during the third round. Julio Cortez/AP
Jordan Spieth hits out of a bunker onto the fifth green during the third round of the PGA Championship golf tournament on Saturday, May 18. Seth Wenig/AP
A spectator rests in the shade of a tree along the seventh fairway during the third round. Julio Cortez/AP
Phil Mickelson walks up to the 18th green during the third round. Andres Kudacki/AP
Dustin Johnson greets spectators as he walks to the 12th tee. Seth Wenig/AP
Brooks Koepka picks his ball out of the hole after putting on the eighth green. Julio Cortez/AP
Brooks Koepka plays his shot from the 17th tee during the second round of the 2019 PGA Championship on Friday, May 17, in Farmingdale, New York. Koepka, in the lead after the second round, set a record for the lowest 36-hole score in major championship history. Stuart Franklin/Getty Images
Tiger Woods tees off on the 18th hole. Woods failed to make the cut for the final two rounds after shooting a three-over 73, ending the tournament at five over. Stuart Franklin/Getty Images
Fans cheer for Tiger Woods on the 13th hole. JUSTIN LANE/EPA
Jordan Spieth of the United States lines up a putt on the 16th green during the second round of the US PGA Championship. At the end of the round, Spieth was tied second with Australian Adam Scott. Mike Ehrmann/Getty Images
Fans line up near the the eighth green during the second round. Mike Ehrmann/Getty Images
World No.1 Dustin Johnson reacts after putting on the seventh green. Julio Cortez/AP
Phil Mickelson plays a shot from the rough on the third hole. Stuart Franklin/Getty Images
Brooks Koepka, left, shakes hands with Tiger Woods after finishing the second round. Charles Krupa/AP
Tommy Fleetwood plays a shot from the fourth tee. Warren Little/Getty Images
Brooks Koepka with yet another impeccable drive on the 15th tee in a thrilling opening round of 63 -- a course record. Patrick Smith/Getty Images
April's Masters victory felt a long time ago for Tiger Woods; the 15-time major winner regularly located both rough and bunker in a first round that lacked the control of last month. Christian Petersen/PGA of America/Getty Images
Alex Noren takes stock on the third hole of this thrillingly difficult golf course. If you miss the fairway and the bunkers, the long grass will eat you alive. Darren Carroll/PGA of America/Getty Images
John Daly, the PGA Championship winner in 1991, was making a bit of history at Bethpage Black. He has been given permission to use a golf cart at the tournament as a result of his osteoarthritis in his right knee. John David Mercer/USA TODAY Sports
Phil Mickelson and Jason Day salute their fans as they complete solid first rounds of 1 under par. Brad Penner/USA TODAY Sports
Flowing locks blowing in the wind, Tommy Fleetwood in action en route to a very respectable first-round effort of 3 under par. Stuart Franklin/Getty Images
Brooks Koepka putts on a hulking eighth green, watched by fans who were witnessing a clinic from the three-time major winner. Peter Casey/USA TODAY Sports
Jason Day's only major victory came in the 2015 PGA Championship. Here he is, one of many to find one of Bethpage Black's daunting sandpits. Brad Penner/USA TODAY Sports
Dustin Johnson, the world No.1 and a favorite among many experts, tees off at the 17th. John David Mercer/USA TODAY Sports
As Phil Mickelson watches his tee shot fly into the distance, his fans make sure to leave with their own memories. Charles Krupa/AP
An image to highlight the extent of this monster golf course. Narrow fairways, damp, long roughs, gaping bunkers, overhanging trees. But then, Brooks Koepka on the tee, helping himself to the most supreme first round of major golf imaginable. Stuart Franklin/Getty Images