Olympics: Biles returns to Olympic competition, wins bronze on beam

Ana Marcela Cunha, of Brazil, poses with her gold medal after winning the women's marathon swimming event at the 2020 Summer Olympics on Wednesday, Aug. 4, 2021, in Tokyo. (AP Photo/David Goldman)

Simone Biles, of the United States, performs on the balance beam during the artistic gymnastics women's apparatus final at the 2020 Summer Olympics on Tuesday, Aug. 3, 2021, in Tokyo, Japan. (AP Photo/Ashley Landis)

TOKYO — Simone Biles isn’t going home with a fistful of gold medals. A mental block — one brought on by exhaustion or stress or something the American gymnastics star still can’t quite grasp — that forced her to pull out of four Olympic finals saw to that.