The U.S. Open, "Golf's Toughest Test," starts today from the Lake Course at the Olympic Club in San Francisco, California.
A total of 156 players will try to pass the test this weekend and win the year's second major and the $1.4 million paycheck that comes with it.
But it won't be an easy feat to achieve. Players face the tough question on whether the toughest stretch at Olympic is the opening six holes, or all 18 of them.
The greens have been resurfaced, and they roll so fast that it's difficult to get the ball close. Also some areas off the green have been shaved to form large collection areas.
A slight miss could send the ball some 30 yards away. One thing is for sure here, there won't be a repeat of Rory McIlroy's record-setting 16-under 268 posted last year at Congressional.
But that is just the course. Let's take a look at what the experts around the web are saying about the world's top players heading into the U.S. Open.