(CNN) -- Justin Rose will take a four-stroke lead going into Sunday's final round of the AT&T National in Pennsylvania after posting a three-under par 67 on Saturday.
The Englishman began his third round where he left off from Friday's flawless 64, making early birdies at the first and fifth holes. Two more followed on the back nine helping him to a ten-under par total of 200 after 54 holes.
Rose experienced only one scare at the 14th hole at the testing Aronimink course. He made bogey, but it could have been worse.
Attempting to play safe from rough around the 14th green, Rose only succeeded in finding the rough on the other side of the green. But a deft chip to four feet ensured the 29-year-old dropped just one stroke.
Defending champion Tiger Woods will not be challenging for honors this year after posting a third round even-par 70, which leaves him 13 strokes adrift of Rose in 47th place.
It could have been a lot worse for the world number one, who started with three bogeys in the opening six holes.
But he managed to turn his day around on the eighth hole with a birdie two, before restoring parity for the day making birdies at the 11th and 13th holes.
"Every putt coming in I hit on line with the right pace, something I hadn't done yet this week.
"I kept blocking putts the first two days. Today I finally got it into position where I could release the blade again," Woods said, AFP reported.
Swede Carl Pettersson's third round 65 saw him rise to second place, a position he shares with South Korea's Charlie Wi who shot an even-par round of 70. Both men will start the final round on six-under par.
American Jeff Overton is a shot further back on five-under par, while Ryan Moore and Australia's Jason Day -- who started the day in second -- are in fifth place, six shots off the pace.
Rose and the chasing pack will be acutely aware of what happened last weekend at the Travelers Championship in Connecticut, where the Englishman squandered a three stroke lead on the final day to eventually finish in a tie for ninth place.
"If you're sitting at the top of the leader board, it seems like it's yours to lose for sure," Rose said, AFP reported.
"That's why a golf tournament is 72 holes. The lead doesn't mean much until you close it out. I know tomorrow I have a great opportunity once again. I feel a lot more comfortable with a lot more aspects of my game this week," Rose added, AFP reported.