After starting the day in a tie for first place, Henrik Stenson moved into sole possession of the lead with 18 holes left to play at the LIV Golf Invitational Bedminster.
Stenson and Patrick Reed were co-leaders with matching scores of seven-under par following Friday's opening round. The Iceman shot a 69 on Saturday to move to nine-under par overall.
Dustin Johnson is alone in second place at six-under par with a 69 in the second round. Four players, including Reed, are tied for third and one shot behind Johnson.
Phil Mickelson did improve on his opening-round 75 with a two-over par 73 on Saturday, but he's in a four-way tie for 40th place at six over for the tournament.