American Patrick Reed matched the best score of the day, a five-under-par 67, to earn a one-shot lead after the third round at the Wells Fargo Championship in Wilmington, North Carolina on Saturday.
Reed made a two-putt birdie at the final hole to post an eight-under 208 total, with Spaniard Jon Rahm (69) and Swede Alex Noren (69) equal second on seven-under at Eagle Point.
Four others are two shots behind Reed, including halfway leader Francesco Molinari, while world number one Dustin Johnson is equal 14th, four back after matching Reed's 67.
Johnson is seeking to win his fourth consecutive start, something that has not been done on the PGA Tour since Tiger Woods in 2007-08.
(Reporting by Andrew Both in Cary, North Carolina, editing by Pritha Sarkar)