Bill Haas holds a one-stroke lead heading into the final round of the Valspar Championship in Florida.
Haas repeated his second-round four-under-par 67 to move up two places into the outright lead at Palm Harbor.
The American holed five birdies and dropped one shot on Saturday and goes into the last 18 holes in pole position as he looks for a seventh PGA Tour title.
Graham DeLaet is Haas' nearest challenger after the Canadian's third-round 68.
DeLaet carded two bogeys on the front nine, but an eagle on the 14th put him right back in contention.
Charley Hoffman's 67 moved him up 12 places to sits joint third alongside fellow American Ryan Moore, who shot a 69.
Overnight joint-leader Steve Stricker (72) could not keep up his early form and is joined in equal-fifth along with Patrick Reed (68) and Charles Howell III (70).
Meanwhile, defending champion Jordan Spieth (67) continued his push up the leaderboard following an abysmal opening round.
Spieth's bogey-free card, which included an eagle on the 14th, saw him move up 34 places, but he sits six strokes behind Haas.