Matt Fitzpatrick opened up a three shot lead ahead of the final round of the RBC Heritage, though world number one Scottie Scheffler moved ominously into the frame behind him.
The 2022 US Open champion overcame a messy front nine, which included three bogeys, to post a three under par score, with an eagle at the par five 15th helping to give him some separation from the chasing pack heading into Sunday.
However, four-time major winner Scheffler now heads that chasing pack after a seven under par 64 on Saturday, which commenced with a birdie blitz, five coming in the first six holes.
His momentum stalled around the turn, however the Texan, who made a late surge to finish runner-up to Rory McIlroy in Augusta, finished with a flourish with birdies on 16 and 18 to reach 14 under par, three adrift of Fitzpatrick.
This saw him leapfrog Brian Harman, the 2023 Open champion having shot the low round of the day with an eight under par 63 to get to 13 under par overall.
Joined with in tied-third are Si Woo Kim and Sepp Straka, who carded rounds of 66 and 67 respectively.
Viktor Holvand, who began the day one stroke behind Fitzpatrick, retreated from the top of the leaderboard with a two over par 73 seeing him slip back into the group on 11 under par.
Shane Lowry broke inside the top-30 after a bogey-free round of 67 saw him jump to seven under par overall.
Lowry opened with a birdie at the par-four 1st and and went on to pick up further birdies at the eight, ninth and 13th to finish the third round in tied-29th.
