England's Justin Rose shot a flawless 63 to grab a share of the lead ahead of the final round of the WGC-Bridgestone Invitational.
The World Number Eight was six shots off the lead at the halfway stage after failing to card a single birdie in his one over par 71 on Friday.
But the 35 year old was back on the birdie trail on Saturday, opening his round with back to back gains before picking up another shot at the eighth to reach the turn in 32.
Rose picked up further shots at the 13th, 15th and 16th holes before sinking his 30 foot birdie putt at the last to post the first bogey free round of the week and join overnight leader Jim Furyk on nine under par.
Rose was pleased with his performance on day three. He said: "Yesterday, when I shot 71, I actually played really well, not much different to today.
"I drove it just as well yesterday as I did today, which is obviously the key to setting up a good round of golf around here.
"It just didn't happen really yesterday.
"But I came into today with a belief that I was still playing well and probably made the adjustment mentally that possibly I was giving the course a bit too much respect yesterday.
"I haven't seen a putt go in all week from outside eight feet, it feels like.
"So to knock that ball in on the last, it was a nice bonus for sure."
Furyk held a four shot lead going into day three at Firestone Country Club but allowed himself to be caught after carding a one under par 69 in his third round.
The 45 year old American started brightly, firing a birdie on the par five second, but he slipped back to eight under after he three putted the seventh.
He bounced back with a birdie from ten feet on the par four eighth before increasing his lead with another gain at the 11th.
Furyk then dropped a shot on the 12th before carding pars on the final six holes to finish on nine under.
"I felt pretty good about the round all in all," said Furyk.
"I felt like I struck the ball pretty well on the front nine. I drove the ball beautifully and hit a lot of fairways.
"I had opportunities but didn't knock in some putts that I probably could have or should have, and felt like the front nine could have been better.
"But then on the back nine, I missed a bunch of fairways. I think, when I finally did hit one on 18, I was in a divot and an awful lie.
"I finally hit a fairway and still couldn't make a good swing at it. I really just kind of gutted it out and ground it out and made the best I could of the back nine.
"I really think I scored well to shoot level par and kind of held myself in the golf tournament.
"Where it felt like maybe I could have got a little more out of the front, I got a lot out of the back, and it probably all evened out in the long run."
Ireland's Shane Lowry goes into the final round two shots off the lead after firing five birdies and two bogeys in his round of 67.Meanwhile Henrik Stenson, Ian Poulter, Steven Bowditch and Bubba Watson are two shots further back on five under par, with Graeme McDowell and Brooks Koepka among those on four under.