American star Simone Biles aims for more history in Tokyo

Sunisa Lee competes on the floor exercise during the U.S. Gymnastics Championships, Friday, June 4, 2021, in Fort Worth, Texas. (AP Photo/Tony Gutierrez)

MyKayla Skinner celebrates her performance on the balance beam during the women's U.S. Olympic Gymnastics Trials Friday, June 25, 2021, in St. Louis. (AP Photo/Jeff Roberson)

Simone Biles waves after competing in the floor exercise during the women's U.S. Olympic Gymnastics Trials Sunday, June 27, 2021, in St. Louis. (AP Photo/Jeff Roberson)

Members of the U.S. Women's Olympic Gymnastic Team, Simone Biles, Suni Lee, Jordan Chiles, and Grace McCallum plus individual members MyKayla Skinner and Jade Carey (L-R) are announced after the U.S. Olympic Gymnastics Trials Sunday, June 27, 2021, in St. Louis. (AP Photo/Jeff Roberson)

Grace McCallum competes in the floor exercise during the women's U.S. Olympic Gymnastics Trials Sunday, June 27, 2021, in St. Louis. (AP Photo/Jeff Roberson)

Jade Carey competes in the floor exercise during the women's U.S. Olympic Gymnastics Trials Friday, June 25, 2021, in St. Louis. (AP Photo/Jeff Roberson)

Jordan Chiles competes in the floor exercise during the women's U.S. Olympic Gymnastics Trials Sunday, June 27, 2021, in St. Louis. (AP Photo/Jeff Roberson)