Tiger Woods takes a shot next to the Church Pews during a practice round.
2 of 7Charles Krupa/AP
Last year's U.S. Open champion, Geoff Ogilvy, walks out of a bunker on the 16th hole.
• Geoff Ogilvy: One Step Ahead
3 of 7Fred Vuich/SI
Fans walked around No. 9 as the grounds crew mowed the rough.
• Danger Zones: Oakmont's 5 toughest shots
4 of 7Gene J. Puskar/AP
Phil Mickelson, who took last week off because of an injury to his left wrist, worked on his putting on the practice green.
Read more about Mickelson's practice round
5 of 7Fred Vuich
Charles Howell III attempts to make his way out of the famed Church Pew bunkers during his practice round.
• See the latest news about Charles Howell III
6 of 7Fred Vuich/SI
Paul Casey also played out of the Church Pew bunkers Monday.
• See the latest news about Paul Casey
7 of 7Fred Vuich/SI
The rough at Oakmont has already been deemed too high, and had to be scaled back. It was first cut to four inches high and the other rough six to 6 1/2 inches, but now it is four inches high and 2 3/4 to five inches.
• Read more about the rough at Oakmont
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