Tournament host Tiger Woods roared into contention for a sixth Hero World Challenge title in the Bahamas.
The Masters champion carded a five-under-par 67 in the third round of the limited-field event which raises funds for his foundation.
At 11-under for the week, Woods trails leader Gary Woodland by two shots.
Woodland had five birdies and a single bogey in his 68 to sit 13-under, and his round was matched by Sweden's Henrik Stenson, who is a shot behind the US Open champion in second.
"It was a nice finish, same as yesterday," Woodland said.
"So excited about where I'm at and I look forward to tomorrow."
Woods had two birdies and a bogey on his front nine, before birdieing the 11th from 20 feet.
Back-to-back gains at the 14th and 15th were then followed by a closing birdie as Woods left himself well placed for a final-round title tilt.
"I just have to focus on going out there and making birdies," Woods said.
"And then I have 23 hours on a plan to recover."
The event is finishing on Saturday (Sunday AEDT) to give the US Presidents Cup team - which will be captained by Woods and features 11 players involved this week - time to travel to Melbourne to take on the International team next week.
There was a controversial moment on the 11th hole when Patrick Reed appeared to flatten out sand behind his ball in a bunker with two practice swings.
The American Ryder Cup star was handed a two-shot penalty for the infringement, leaving him three shots off the pace.