Tiger Woods thinks Merion, the course that's hosting the US Open, will provide a stern test when the tournament begins next week.
Woods believes discipline and shot shaping will be important for overcoming the challenges the course poses.
Merion last hosted the tournament in 1981 and Woods knows exactly what is needed to tame the course.
"If it plays long, there are certain holes where you have got to get it down there," Woods told reporters.
"If you look at the list of champions, they have all been really good shot-makers. They have all been able to shape the golf ball. I think that's what it lends itself to and you have to be so disciplined to play that course.
"You play to certain spots on the greens. You leave yourself certain putts and you deal with it and you move on."
The world number one is attempting to end a five-year major title drought in next week's 113th US Open. He last won a major in 2008, when he won the US Open at Torrey Pines after a play-off.
The East Course is one of the shortest layouts on the major schedule measuring just 6,996 yards. However, narrow fairways, dense rough, three par-threes of over 230 yards and a tough 18th par-four of 521 yards mean that Merion poses a real threat.
Woods has won four titles this season and is only four more titles away from matching Sam Snead's all-time record of 82 PGA titles. Woods has won at Torrey Pines, Doral, Bay Hill and the Players Championship this year and shared fourth at the Masters. He crashed to a share of 65th at last week's Memorial.
But the 37-year old believes his game is improving and has taken big strides from last year.
"My game is coming around, and to have won seven times the last couple years is something I'm proud of," Woods said. "What I've done from last year and this year, being healthy, it's certainly pretty positive."
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