Henrik Stenson has retained his lead at the Tour Championship with a second-round 68 in Atlanta to bring a nine-under-par score into the weekend.
The Swede, who shot an opening-round 63, endured a tougher second day at East Lake, picking up four birdies and two bogeys, but it was enough to earn a three-shot lead.
Jordan Spieth, who has won two Majors this year, is his closest competitor after the American improved on his 68 by shooting 66 on Friday.
England's Paul Casey, who was two shots adrift heading into the session, scored a level-par 70 to stay on five-under and four strokes off the pace.
Meanwhile, world number two Rory McIlroy is six adrift after a disappointing one-over-par 71, having carded 66 yesterday, while Justin Rose is one behind him on two-under.
World number one and recently-crowned BMW Championship winner Jason Day is nine shots behind Stenson, after following up his round of 69 on Thursday with a 71.
Shane Callaghan
