Henrik Stenson remains on course to win the Tour Championship and FedEx Cup double after finishing round three still four shots in front.
Stenson appeared to be turning the FedEx Cup finale at East Lake into a procession when he extended his lead to nine shots at the turn.
But, perhaps feeling the pressure of trying to secure the two trophies and the massive $10m bonus fund, the Swede saw his lead cut back to four again at the close of play as he posted a 54-hole total of 11-under 199.
The 37-year-old's nearest challenger is now Dustin Johnson who came out of the pack to finish on seven-under after a 67 while it's a further two shots back to Steve Stricker (68).
As has been the pattern all week for Stenson, he did all his scoring on the front nine, with birdies at two, three, seven and nine seeing him match Friday's outward 31.
But that nine-shot lead was eaten into on the back nine as Stenson played it in three-over to Johnson's two-under.
It could actually have been even worse for the world number six. He limited the damage to a bogey on 14 after a wild hook off the tee led to an unplayable lie and he made an excellent par save on 17 from 15 feet.
"I've got to take the positives still. It was tough conditions on the back nine," he reflected later.
Scott falls away
Masters champion Adam Scott had been Stenson's nearest challenger at halfway but felt ill overnight and was put on an IV drip in the clubhouse before play got under way several hours earlier than originally planned due to forecast thunderstorms later in the day.
Scott bogeyed the first hole after driving into the trees to the right of the fairway, three-putted the third for another bogey and then ran up a double-bogey on the fifth after his ball ended in an unplayable lie in more trees.
He ended with a 74 to fall nine back.
Tiger Woods made little impact again although his one-under 69 was his best round of the week.
The world number one carded two birdies and a bogey to finish at three-over and in tied 26th place in the 30-man field.
Stenson's patchy back nine, which included a three-putt for bogey at 18, also gave hope to some of the other chasers.
Justin Rose, Zach Johnson, Billy Horschel and Jordan Spieth share fourth place on four-under and have seven shots to make up on Stenson on Sunday.
Luke Donald is a shot further back after a 67.