American Chris Kirk heads into the final round of the Sentry in Hawaii with a one-stroke lead.
Kirk hit eight birdies and a bogey in a third-round 66 to push his way into pole position at The Sentry in Maui and said he will have to remain aggressive to hold his lead.
“You certainly can’t protect anything out here, that’s for sure,” he said.
“When it’s a shootout like this and the scores are really low, you just stay aggressive and just go do your thing.”
World number one and fellow American Scottie Scheffler, the halfway leader, hit a 71 to drop three shots off the lead.
England's Tyrell Hatton could not replicate Friday’s 62, carding a 72 and dropping into a tie for 14th a further two shots back.
Fellow Englishman Matt Fitzpatrick is four shots off the pace in a share of 10th after a 69.
American Akshay Bhatia, 21, pushed his way into second spot, one stroke behind Kirk on 20 under, while compatriots Xander Schauffele and Jordan Speith and South Korea's Byeong Hun An are a further stroke back in third.