The 17-year-old gymnast from DeWitt, Mich., failed to qualify for the individual all-around title Sunday, even though she is the current world champion and entered the games favored to take home the individual gold medal.
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Uncharacteristic slip-ups by Wieber on the vault, uneven bars and beam and a step out-of-bounds on her floor routine that cost her one-tenth of a point put her in third place behind teammates Aly Raisman and Gabby Douglas, respectively.
Countries can enter just two gymnasts in the all-around final so even though Wieber finished fourth overall and just .233 of a point behind Douglas, who had won the all-around at the U.S. Olympic trials, she was left weeping and with her head bowed after the results.
Wieber's title as world champion may have preceded her misfortune. Only four reigning world champions have ever gone on to win Olympic gold in the course of Olympic history.
"Jordyn is a phenomenal athlete and I think it just goes to show you that at the Olympic Games anything is possible," Kerri Strug, a member of the gold medal-winning 1996 "Magnificent Seven" USA Olympic gymnastics team, told " Good Morning America." "She didn't have the competition of her life in the prelims but she can come back in the team finals and show everyone how strong she is."
Despite the surprise in the individual race, the United States as a team dominated on Sunday, finishing with 181.863 points to Russia's 180.429. Defending Olympic champion China was third with 176.637 points.
In addition to Wieber, Douglas and Raisman, the "Fabulous Five" of Team USA consists of McKayla Maroney, the 16-year-old reigning world champion on the vault, and Kyla Ross, 15, the youngest member of the team.
Douglas, 16, earned the nickname "The Flying Squirrel," from coaches for her flexibility and speed, while Raisman stands out as the team captain and elder stateswoman at 18-years-old.
"This women's team is phenomenal," Strug said. "They're mentally so tough. They're physically fit. They have so much depth. Going into the finals they're leading the Russians by a point and a half so we're expecting great things from them."
Even Wieber, it appears, has already turned her individual disappointment into a focus on the next goal, the team final, which will take place on Tuesday.
"Thank you all for your love and support," she Tweeted late Sunday. "I am so proud of our team today and I can't wait for team finals!!"
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The Associated Press contributed to this report.