Sam Burns has the lead in the U.S. Open on a rain-soaked Oakmont course and faces his biggest test. The 28-year-old from Louisiana has never contended in 20 previous majors.

Burns, a 28-year-old from Louisiana, has five PGA Tour titles, the last one more than two years ago. Despite that, he leads the quartet under par through 54 holes.

Now comes the hard part. Sam Burns held strong on Saturday, handling the nerves of the 36-hole lead at the U.S. Open and parlaying it into the 54-hole lead with a gritty third-round 69. At four under,