Joaquín Niemann shot a 64 to move up the leaderboard and tie Dustin Johnson for the second-round lead at LIV Golf Singapore on Saturday.
Johnson, the first-round leader, recorded a round of 68 to follow his opening-round 63. He and Niemann sit at 11-under 131 for the tournament, three shots ahead of Lucas Herbert (66 on Saturday), Jason Kokrak (66), Cameron Tringale (67) and Sebastián Muñoz (68) at Sentosa Golf Club.
Johnson's 4Aces GC also rose to 20-under, taking a five-stroke lead over Phil Mickelson's HyFlyers GC in the team competition.