Worley Replaces Bieger at American Cup

Bieger injured her leg while training Wednesday evening.

"I am very disappointed and frustrated to have this happen now because I have been training very hard for this competition," Bieger said. "Everything happens for a reason, and we'll know more once we get additional information. I hope to be back sooner than everyone thinks. I also will be pulling for my teammates to do well this weekend."

Worley finished second all-around to Nastia Liukin at the 2006 American Cup. Hamstring injuries kept her out of the 2006 National Championships and World Championships.