Peter Hanson was the outright leader after round three of The Masters at Augusta after a sensational back nine holes that saw him finish the day on nine under par after carding a 65.
The Swede started the day just two under but took his time through each hole and steadily rose through the rankings on a day that didn't see him drop a single shot throughout the round.
While Hanson finished at the top of the pile, three time Masters winner Phil Mickelson and South African Louis Oosthuizen were breathing right down his neck the whole time.
Mickelson carded a 66 on Saturday, leaving him just one shot behind Hanson on eight under after a remarkable display also on the back nine.
Mickelson parred every hole on the front nine, but four birdies and an eagle on the back nine saw him well in contention to claim his fourth Masters title.
Oosthuizen on the other hand had a much more relaxed approach compared to Mickelson's flurry of birdies, gradually working his way up the scoreboard over the course of the day, although a bogey on the 18th left him two shots behind Hanson on seven under.
Bubba Watson finished the day in fourth place on six under after an impressive display, while Matt Kuchar ended his round in fifth on five under after carding a 70.
Padraig Harrington left himself in with a shout after finishing the day with a 68, putting him four under for the tournament, but Rory McIlroy was only able to end the round one over.