San Francisco: Dustin Johnson rolled in a 10-foot birdie putt at the 18th on Saturday to grab a share of the Pebble Beach National Pro-Am lead with Ted Potter Jr., who flirted with a 59.

World No. 1 Johnson fired an eagle and four birdies in his two-under par 70 at Pebble Beach Golf Links, one of three tournaments in use for the first three rounds of the PGA Tour event.

Potter added four more birdies after the turn to seize the solo lead and take his total for the round to 11-under. Putting troubles derailed Rory McIlroy’s first Pebble Beach National Pro-Am bid as the Northern Ireland star failed to make the cut. With five birdies and five bogeys, McIlroy’s even par 72 at Pebble Beach left him one-under for the tournament and outside the cutline by two strokes.