J.J. Spaun finishes the first round of the U.S. Open with a one-shot lead after Scottie Scheffler struggles with a round of 73.

OAKMONT, Pa. — As Phil Mickelson, aka Lefty, aka Phil the Thrill, aka FIGJAM, aka one of the two most famous golfers of the 21st century, teed off Thursday in what might be his final U.S. Open, there were more security guards than journalists following him. And there were two security guards.

Sam Burns outdueled fellow American J.J. Spaun down the stretch to grab a one-stroke lead after Saturday's third round of the US Open, setting the stage for a Sunday showdown at punishing Oakmont.