Where it all began: Annika's first win as a professional was in a major, the 1995 U.S. Women's Open at the Broadmoor Golf Club in Colorado Springs, Colo.
2 of 17JD Cuban/SI
Annika Sorenstam with then-fiance David Esch after winning the 1996 U.S. Open at Oakland Hills.
3 of 17Nick Laham/Getty Images
In 2006, Sorenstam won her third U.S. Open by defeating Pat Hurst in an 18-hole playoff at Newport Country Club in Rhode Island.
4 of 17Sam Greenwood/Getty Images
The signature move in Annika's swing is her early hip rotation. At the moment of impact, she is often already facing, and looking, down the fairway.
5 of 17Jeff Gross/Getty Images
Showing she still remembered how to play with the guys, Sorenstam laughed as Fred Funk put on a skirt after she outdrove him at the 2005 Merrill Lynch Skins Game.
6 of 17Frazer Harrison/Getty Images
When Annika was awarded ESPN's Female Athlete of the Year award in 2005, she had won three of the last five LPGA majors. She made the cut in all 55 official tournaments she entered between 2003 and the start of the 2006 season.
7 of 17Andy Lyons/Getty Images
She held off Michelle Wie and Paula Creamer to win the 2005 McDonald's LPGA Championship.
8 of 17Lisa Blumenfeld/Getty Images
After winning the Kraft Nabisco Championship at Mission Hills Country Club in 2005, Annika (right) took the ceremonial plunge into the Champion's Pond with her sister, Charlotta.
9 of 17Andy Lyons/Getty Images
Sorenstam got over her nerves at the 2003 Colonial and made some birdies, like this one on the 13th on Thursday, but she missed the cut by four shots.
10 of 17Scott Helleran/Getty Images
Most PGA Tour players supported Sorenstam's decision to accept a sponsor's exemption to the 2003 Colonial. Some, most notably Vijay Singh, did not. Thousands of fans wore "Go Annika" buttons to show their support.
11 of 17Michael Heape/SI
After Sorenstam retires, she'll have more time for her other passions, including cooking, which she talked to SI about in 2007.
12 of 17Scott Halleran/Getty Images
In the second round of the 2001 Standard Register LPGA, Sorenstam became the first woman to shoot 59.
13 of 17Jay LaPrete/AP
Sorenstam at the 1998 Solheim Cup with Pia Nilsson, her longtime coach and friend. Sorenstam has been a stalwart on the European team since 1994, with an overall record of 22-11-4.
14 of 17Lennox McLendon/AP
Annika won the LPGA Tour Championship in 1997, collecting a nice trophy and a pile of cash. She has won more than $22 million in her career.
15 of 17Jack Smith/AP
Sorenstam became first non-American woman to successfully defend a U.S. Open title when she won the 1996 U.S. Open at Pine Needles Golf Club in Southern Pines, N.C.
16 of 17David Cannon/Getty Images
While she never got to play in the Masters, Annika was in Augusta before the 1996 tournament to collect her Golf Writers Association of America player of the year award. Greg Norman was the male winner.
17 of 17Robert Beck/SI
Annika Sorenstam portrait for Sports Illustrated in February 1996.
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