Fans watch players practice near the 18th green. (Photo by Ben Jared/PGA TOUR via Getty Images)
Phil Mickelson putts on the third hole during a practice round. (Photo by Andy Lyons/Getty Images)
Jon Rahm walks off the fifth tee during a practice round. (Photo by Andy Lyons/Getty Images)
Tyrrell Hatton plays from the bunker on the fourth hole during a practice round. (Photo by Andy Lyons/Getty Images)
Jason Day walks across the second green during a practice round. (Photo by Patrick Smith/Getty Images)
Jose Luis Ballester Barrio plays a shot on the third hole during a practice round. (Photo by Patrick Smith/Getty Images)
Patrick Cantlay plays from the bunker on the sixth hole during a practice round. (Photo by Patrick Smith/Getty Images)
The Oakmont clubhouse during a practice round. (Photo by Warren Little/Getty Images)
Hideki Matsuyama on the driving range during a practice round. (Photo by Warren Little/Getty Images)
Amateur Matt Vogt watches his shot on the fifth hole during a practice round. (Photo by Patrick Smith/Getty Images)
Scottie Scheffler walks to the 14th tee during a practice round. (Photo by Andrew Redington/Getty Images)
Scottie Scheffler plays a shot from the second tee during a practice round. (Photo by Cliff Hawkins/Getty Images)
Grounds crew tend to the course during a practice round. (Photo by Cliff Hawkins/Getty Images)
Dustin Johnson plays a shot during a practice round. (Photo by David Cannon/Getty Images)
