Bubba Watson and Jordan Spieth started their final round on Sunday at the Masters on five-under with the chasing pack jostling for position behind them.
Watson, the 2012 Masters champion, shot a 74 on Saturday to come back to the field after starting his round three shots ahead.
Youngster Spieth, seeking to become the first debutant winner since 1979, took 70 for his third under par round in succession.
Veteran Fred Couples, 54, holed a left-to-right putt on the first and then got up-and-down from the bunker for birdie on the par five second to move to three-under.
Rickie Fowler birdied the first to move to four-under, one shot behind the leaders, while 2003 US Open champion Jim Furyk gained a shot at the second to reach minus three.
Larry Mize, the 1987 Masters winner, was out first on Sunday, and believes there will be drama to come.
“I think it’s going to be an exciting finish,” he said. “There are birdies to be made, but you’re going to have to play good.” The lone Dutch player in the field, Joost Luiten, showed a low score was possible as he went out in the second group and shot a five-under par 67.
Former Masters champion Bernhard Langer of Germany made an explosive start to his round by opening birdie-eagle, and though he bogeyed three, a further birdie at five saw him turn in an impressive 33.