Peter Hanson of Sweden will take a one-stroke lead into Sunday's final round of the 76th Masters after he fired a seven-under 65 in Saturday's third round. That put him at nine-under par 207, a stroke clear of Phil Mickelson, who had a 66 after starting the day three shots off the lead. A stroke further back at seven under came South Africa's Louis Oosthuizen after he had a 69 while Bubba Watson of the United States was on six under after a 70. Matt Kuchar (70) was on five under with four players -- Hunter Mahan of the United States (68), Henrik Stenson of Sweden (70), Lee Westwood of England (72) and Padraig Harrington of Ireland (68) -- all on four under. Tiger Woods fired a par 72 and, at three over, his chances of winning a fourth green jacket are doomed, 12 strokes off the pace. Rory McIlroy, one stroke off the lead at the start of the day, was stunned by two double bogey sixes on the front nine as he stumbled in with a 77 that brought back dark memories of his closing 80 here last year.