2013 Masters Round 1

1 of 32 Simon Bruty/Sports Illustrated
Tiger Woods shot a two-under 70 Thursday at Augusta National.
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Woods made three birdies and a bogey.
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Three of the four times Woods has opened with a 70, he's gone on to win a green jacket.
4 of 32 Fred Vuich/Sports Illustrated
Phil Mickelson shot a one-under 71.
5 of 32 Robert Beck/Sports Illustrated
Mickelson admitted to being tentative on Thursday, and said he plans to be more aggressive on Friday.
6 of 32 Fred Vuich/Sports Illustrated
Mickelson made four birdies and a bogey on the back nine.
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Rory McIlroy struggled to an even-par 72.
8 of 32 Fred Vuich/Sports Illustrated
McIlroy made five birdies and five bogeys.
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McIlroy's girlfriend, tennis star Caroline Wozniacki, followed him on Thursday.
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Olympic gold medalist Lindsey Vonn was at Augusta Thursday to support Woods, her new boyfriend. The couple announced their relationship on Twitter and Facebook last month.
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Vonn was on the course watching Tiger, only two months after undergoing knee surgery to repair two shredded ligaments in a skiing accident.
12 of 32 Getty Images
Lindsey Vonn watched boyfriend Tiger Woods on the first hole of the Masters on Thursday morning.
13 of 32 John W. McDonough/Sports Illustrated
Sergio Garcia is tied for the lead after a bogey-free 66.
14 of 32 John W. McDonough/Sports Illustrated
Dustin Johnson is one shot back after a 67.
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Fred Couples made six birdies and two bogeys for a 68.
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Fourteen-year-old Tianlang Guan shot a one-over 73.
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Marc Leishman is tied for the lead with Garcia.
18 of 32 John W. McDonough/Sports Illustrated
Adam Scott (red shirt) opened with a three-under 69.
19 of 32 Robert Beck/Sports Illustrated
Louis Oosthuizen, who lost in a playoff last year to Bubba Watson, shot a two-over 74.
20 of 32 Al Tielemans/Sports Illustrated
Ernie Els had an up-and-down day until he made an eagle on the par-5 15th. He finished at one under par.
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Lee Westwood bounced back from an opening double bogey to shoot a 70.
22 of 32 Fred Vuich/Sports Illustrated
Hunter Mahan will struggle to make the cut after a 76.
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David Lynn fired a four-under 68.
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Graeme McDowell closed with two bogeys for a one-over 73.
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Brandt Snedeker birdied both par 5s on the back nine for a 70.
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Former world No. 1 Luke Donald shot a 71.
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Four-time Masters champ Arnold Palmer celebrated with a fist pump after his tee shot found the fairway in his ceremonial tee shot to kick off the 2013 Masters at Augusta National on Thursday morning.
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Clad in his trademark all-black attire, Player striped his tee shot down the right side of the fairway. Player, a three-time Masters champ, joined the Golden Bear and the King last year as honorary starters for the Masters.
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Nicklaus, owner of six green jackets, joined Palmer and Player in the fairway. The entire group found the fairway for the second consecutive year.
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Palmer, Player and Nicklaus combined for 13 green jackets.
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The iconic white leaderboard at Augusta sat empty Thursday morning before play began.
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Patrons waited at the gates of Augusta National early Thursday morning.