Shawn Johnson, Nastia Liukin, Chellsie Memmel, Alicia Sacramone, Samantha Peszek, and Bridget Sloan. The replacements are Jana Bieger, Ivana Hong, and Corrie Lothrop.

Thanks!  Sadly, I have not paid much attn to gymnastics this quad & even less to US gymnastics so I am not familiar w/ some of these girls.  I do remember liking Jana Beiger for her uniqueness among the squad ... shame she did not make it.