World Gymnastics Championships Gymnasts To Watch

Wieber, 16, is the reigning U.S. all-around champion and arguably the favorite to win the world all-around title. Wieber defeated the 2010 world all-around champion, Aliya Mustafina, earlier this year, and Mustafina is not competing in Tokyo due to injury. Neither are Americans 2009 world champion Bridget Sloan nor two-time world medalist Rebecca Bross. The next week could be Wieber's stage to set herself up as the U.S. golden girl for London.