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Headless Rhythmic Gymnasts

Yamaguchi Runa, of Japan, performs with the rope during the Individual All-Around at the 30th Rhythmic Gymnastics world championships in Moscow, Russia, on Monday, Sept. 20, 2010. (AP Photo/Ivan Sekretarev)

Headless Rhythmic Gymnasts

Rhythmic gymnastics can bend and contort with the best of Cirque du Soleil performers. Warning: This gallery will make your neck hurt. -By Andrew Dubbins, Yahoo! Sports