American J.J. Spaun is 18 holes away from a wire-to-wire victory at the FedEx St. Jude Championship after finishing Saturday one stroke clear of the chasing field, shooting a two-under 68 to head in at 13 under.
After rounds of 62 and 67 had Spaun leading at the conclusion of each of the first two rounds, he opened his round on Saturday with nine consecutive pars, but after bogeying the 10th, he responded with birdies on 11, 16 and 17.
Austria's Sepp Straka was all set to finish tied with Spaun at 13 under before he bogeyed the 18th, leaving him in outright second-place at 12 under.
A pair of serious challengers are part of the three-man group tied for third at 11 under, with Trey Mullinax being joined by potential PGA Tour Player of the Year Cameron Smith and consistent major contender Will Zalatoris.
Zalatoris, specifically, has been in sparkling form after struggling to a one-over opening round, shooting Friday's round of the day with a 63, and only Im Sung-jae posted a better Saturday score than his 65.
In classic Zalatoris fashion, his work with the putter was not pretty – dropping 0.38 shots on the greens according to Data Golf's strokes gained stats – but he thrived from tee-to-green, finishing with the most strokes gained from approach shots (2.90) while coming in third in the off-the-tee category (1.78).
American duo Tyler Duncan and Troy Merritt are tied for sixth at 10 under, while Saturday's top performer Im rode his terrific round to join the logjam at nine under, which features the red-hot Tony Finau and U.S. Open champion Matt Fitzpatrick.
Last week's winner Joo-hyung 'Tom' Kim is a further shot back at eight under along with South Korean compatriot Lee Kyoung-hoon, America's Collin Morikawa and Chile's Joaquin Niemann, with Spain's Jon Rahm and Australia's Adam Scott part of the small group at seven under.
After shooting a 62 on Thursday to be the early joint-leader, Kim Si-woo's week has taken a turn for the worst as he followed it with a 73 on Friday and a 72 on his third trip around TPC Southwind.