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US Kayla Mc Maroney poses with her silver medal on the podium of the women's vault final of the artistic gymnastics event of the London Olympic Games on August 5, 2012 at the 02 North Greenwich Arena in London. AFP PHOTO / THOMAS COEX (Photo credit should read THOMAS COEX/AFP/GettyImages)
US Kayla Mc Maroney poses with her silver medal on the podium of the women's vault final of the artistic gymnastics event of the London Olympic Games on August 5, 2012 at the 02 North Greenwich Arena in London. AFP PHOTO / THOMAS COEX (Photo credit should read THOMAS COEX/AFP/GettyImages)

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    McKayla Maroney halts competitive career

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McKayla Maroney halts competitive career

U.S. gymnast McKayla Maroney announces that she is stepping away from her competitive career.

McKayla Maroney halts competitive career

U.S. gymnast McKayla Maroney announces that she is stepping away from her competitive career.