Nastia Liukin performs on the balance beam during the preliminary round of the women's Olympic gymnastics trials. (AP Photo/Gregory Bull)

David Sender competes on the horizontal bar during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Elizabeth Price competes on the uneven bars during the final round of the women's Olympic gymnastics trials. (AP Photo/Julie Jacobson)

John Orozco soars above the horizontal bar during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

McKayla Maroney performs in the floor exercise event during the final round of the women's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

Aly Raisman competes in the floor exercise event during the final round of the women's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

Jordyn Wieber competes on the uneven bars during the final round of the women's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

Danell Leyva competes on the horizontal bar during the final round of the men's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

Nastia Liukin performs on the balance beam during the final round of the women's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Sarah Finnegan competes on the uneven bars during the final round of the women's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

McKayla Maroney competes on the vault during the final round of the women's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Jonathan Horton competes on the parallel bars during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Kyla Ross competes in the floor exercise event during the final round of the women's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

Kyla Ross performs on the balance beam during the final round of the women's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Alicia Sacramone performs on the balance beam during the final round of the women's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Brandon Wynn competes on the horizontal bar during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Brandon Wynn dismounts the horizontal bar during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

McKayla Maroney competes on the uneven bars during the final round of the women's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Jordyn Wieber leaps from the balance beam during the final round of the women's Olympic gymnastics trials. (AP Photo/Gregory Bull)

John Orozco spins off the vault during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Danell Leyva flips off the vault during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Gabby Douglas competes in the floor exercise event during the final round of the women's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

Jake Dalton performs on the parallel bars during the final round of the men's Olympic gymnastics trials .(AP Photo/Jae C. Hong)

Jonathan Horton competes on the vault during the final round of the men's Olympic gymnastics trials. (AP Photo/Gregory Bull)

Sarah Finnegan competes on the balance beam during the final round of the women's Olympic gymnastics trials. (AP Photo/Jae C. Hong)

John Orozco performs on the parallel bars during the final round of the men's Olympic gymnastics trials. (AP Photo/Jae C. Hong)