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    Olympian only American in her sport

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Olympian only American in her sport

First-time Olympian Julie Zetlin is out to make a mark for rhythmic gymnastics in the U.S. CNN's Sandra Endo reports.

Olympian only American in her sport

First-time Olympian Julie Zetlin is out to make a mark for rhythmic gymnastics in the U.S. CNN's Sandra Endo reports.