Select look at GOLF Magazine’s 40 under 40 list

1 of 12 Angus Murray
Rickie Fowler, 21, golfer, PGA TOUR Pairs a skater 'cut and love of motocross with a killer homegrown swing that earned him two second-place finishes during his rookie season in 2010 and a ticket to the Ryder Cup. Titleist and Puma wasted little time signing him.
2 of 12 David Walberg/SI
Sean Foley, 36, teacher, Core Golf Academy Seemingly on the verge of becoming Tiger Woods's next swing coach, Foley mixes physics, kinetics, psychology, philosophy and a dash of hiphop with mechanical advice for the likes of Sean O'Hair, Hunter Mahan and Justin Rose.
3 of 12 Katy Winn/Getty Images
Amy Mickelson, 38, inspirer The most high-profile Tour wife is in the throes of a brave battle with breast cancer that has given hope to many families and raised awareness of the disease among PGA Tour players and fans. Amy and a victorious Phil embracing at the Masters was the highlight of the 2010 season.
4 of 12 Kohjiro Kinno/SI
Michelle Wie, 21, golfer, LPGA Tour In 2006, Time named her one of "100 People Who Shape Our World." Things didn't quite work out that way. She finally won an LPGA event late last year, and has been on the bounce—if slowly—since she dumped the William Morris Agency as her handler and switched to IMG. She went 3-0-1 in the Solheim Cup for the U.S. last year, by far her best performance as a pro. She's still only 21, even if it feels like she's been on the scene for 30 years.
5 of 12 John Biever/SI
Anthony Kim, 25, golfer, PGA Tour One of only five players in the past 30 years to win three Tour events before age 25, Kim was also a stud at the '08 Ryder Cup (2-1-1, including a 5-and-4 beatdown of Sergio Garcia). He struggled with injuries in 2010, but few doubt that he will quickly return to form.
6 of 12 Mike Ehrmann/SI
Rory McIlroy, 21, golfer, European Tour and PGA Tour He's won twice—at Quail Hollow this year (thanks to a final-round 62) and in Dubai last—and finished tied for third at both the British Open and PGA. Major titles are imminent for the most buzzed-about Euro comer since Sergio Garcia (remember him?).
7 of 12 Darren Carroll/Getty Images
Lorena Ochoa, 28, retired LPGA player Retired from competitive golf earlier this year when she was the world's top player so she could focus on family and her foundation, which helps marginalized children and teenagers. She also helps fund La Barranca Educational Center, near Guadalajara, where more than 300 kids are educated and fed.
8 of 12 Robert Beck/SI
Ryo Ishikawa, 19, golfer, Japan Golf Tour/PGA Tour The Bashful Prince, as they call him, has won eight times on the Japanese Tour, the first W coming at age 15, and earlier this year shot a 58 in competition. Seems destined to be a star on the international level à la Isao Aoki and Jumbo Ozaki, and maybe snare Japan's long-sought first men's major championship.
9 of 12 Chris Graythen/Getty Images
Alexis 'Lexi' Thompson, 15, golfer, LPGA Tour Qualified for the U.S. Women's Open at age 12, turned pro this past June and a month later finished just a shot back at the Evian Masters. The LPGA hasn't had a young player grab the public's interest and hold it since Nancy Lopez back in the 1970s. Maybe Lexi can do it.
10 of 12 Chris Graythen/Getty Images
Natalie Gulbis, 27, golfer, LPGA Tour She's won just one LPGA event, so there are plenty of players with more game. But better looks and marketability? Hardly. Gulbis has 16 sponsors, a modeling career and the ultimate branding vehicle: her own reality show.
11 of 12 Stan Badz/PGA Tour/Getty Images
Justin Timberlake, 29, entertainer The pop star is the host of the Justin Timberlake Shriners Hospitals for Children Open, which benefits a network of hospitals that provide free care to children with orthopedic conditions, burns, spinal cord injuries and cleft lip. He's also the owner of Mirimichi GC in Tennessee, the first course in the U.S. to be designated as a certified Audubon International Classic Sanctuary and to have certification from the Golf Environmental Organization.
12 of 12 Fred Vuich/SI
Tiger Woods, 34, golfer, PGA Tour It has been a year he'd love to forget, though a recent Harris Poll showed he's still tied as the most popular athlete in America with Kobe Bryant. Dubious company, for sure, but a big indicator that really all Tiger needs to do to regain his standing with the public is, in the words of Al Davis, "Just win, baby."