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Going for the Gold - They are at the top of their game and are now set to take on the rest of the world. Keep reading to see some of the athletes already announced to compete on behalf of the United States at the 2012 Olympic Games in London, and keep checking back as new names are added. —Britt Middleton. LaShawn Merritt. Track and field: 400 meter dashGold medal in 2008 Olympic Games in 400 meter and 4x400 meter relay. (Photo: Courtesy US Olympic Team)

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Allyson Felix - Track and field: 100 meter, 200 meter, 400 meter dashSilver medal in 2004 Olympic Games in 200 meter dash, gold medal in the 4x400 meter relay and silver medal in the 200 meter dash in 2008 Olympic Games. (Photo: Courtesy US Olympic Team)

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Lolo Jones - Track and field: 100 hundred meter hurdles(Photo: Courtesy US Olympic Team)

Photo By Photo: Courtesy US Olympic Team

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LeBron James - Men's basketball. NBA team: Miami Heat. 2004 Olympic Games bronze, 2008 Olympic Games gold medalist. (Photo: Ronald Martinez/Getty Images)

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Kobe Bryant - Men's basketball. NBA team: Los Angeles Lakers. 2008 gold medalist(Photo: Chris Chambers/Getty Images)

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Carmelo Anthony - Men's basketball. NBA team: New York Knicks. 2004 bronze, 2008 gold medalist. (Photo: Andy Lyons/Getty Images)

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Chris Paul  - Men's basketball. NBA team: Los Angeles Clippers. 2008 gold medalist(Photo: Andy Lyons/Getty Images)

Photo By Photo: Andy Lyons/Getty Images

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Deron Williams - Men's basketball. NBA Team: Brooklyn Nets (formerly New Jersey Nets). 2008 gold medalist(Photo: Jonathan Daniel/Getty Images)

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Kevin Durant - Men's basketball. NBA team: Oklahoma City Thunder. (Photo: EPA/LARRY W. SMITH/Landov)

Photo By Photo: EPA/LARRY W. SMITH/Landov

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Russell Westbrook - Men's basketball. NBA team: Oklahoma City Thunder. (Photo: Brett Deering/Getty Images)

Photo By Photo: Brett Deering/Getty Images

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Kevin Love  - Men's basketball. NBA team: Minnesota Timberwolves. (Photo: Christian Petersen/Getty Images)

Photo By Photo: Christian Petersen/Getty Images

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Tyson Chandler  - Men's basketball. NBA team: Dallas Mavericks. (Photo: Jeff Zelevansky/Getty Images)

Photo By Photo: Jeff Zelevansky/Getty Images

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James Harden - Men's basketball. NBA team: Oklahoma City Thunder. (Photo: Ronald Martinez/Getty Images)

Photo By Photo: Ronald Martinez/Getty Images

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Andre Iguodala - Men's basketball. NBA team: Philadelphia 76ers. (Photo: CHRIS SZAGOLA CSM /Landov)

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Blake Griffin - Men's basketball. NBA team: Los Angeles Clippers. After injuring his left knee while training for the upcoming Olympic games, it was announced on Friday that Griffin will not participate in the London Olympics. (Photo: Kevork Djansezian/Getty Images)

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Anthony Davis - Men's basketball. NBA Team: New Orleans Hornets.Anthony Davis was named to replace Blake Griffin on July 13 following Griffin's knee injury.  (Photo: AP Photo/Julio Cortez)

Photo By Photo: AP Photo/Julio Cortez/ AP Photo/Julio Cortez

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Gabby Douglas - Gymnastics: uneven bars, balance beam and floor exercise (Photo: Ezra Shaw/Getty Images)

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Cullen Jones - Swimming: 50 meter freestyle, 100 meter freestyle, 400 meter freestyle relayGold medal in 2008 Olympic Games in 4x100 meter freestyle relay(Photo: Courtesy USA Swimming)

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Anthony Ervin - Swimming: 50 meter freestyleGold medal in 2000 Olympic Games in 50 meter freestyle, silver medal in 4x100 meter freestyle relay (2000)(Photo: Courtesy USA Swimming)

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Lia Neal - Swimming: 4X100 meter freestyle relay. Neal won a bronze medal in her event.(Photo: Chris McGrath/Getty Images)

Photo By Photo: Chris McGrath/Getty Images