LONDON -- American star Gabby Douglas was shut out in uneven bars competition in Olympics gymnastics on Monday.

Aliya Mustafina was delighted to finally get Russia a gold in gymnastics. Beth Tweddle was thrilled to finally get an Olympic medal.

But Douglas failed to medal, finishing eighth in the individual gymnastics event competition.

"It was an amazing bar finals with so many great competitors," Douglas said. "Coming into bar finals was a big challenge for me and I made a little mistake. Even if I would have hit a solid routine, I know I have a lower start value than the other competitors. I'm going to go into beam finals (Tuesday) and try really hard to end on a good note."

Just 18 months after blowing out her knee and putting her chances for London in doubt, Mustafina won the title on bars with a score of 16.133 points. It gave the 2010 world champion a full set of medals, following her silver in the team competition and bronze in the all-around. Mustafina couldn't take her eyes off the scoreboard after the final results were posted, staring at it with pride.

Any medal was fine with Tweddle, the inspiration for Britain's gymnastics renaissance. She had come close in 2008, missing the bronze by a whisker, and briefly considered retiring. When the final results flashed, showing her third at 15.916, the O2 Arena cheered so loudly you'd think she had won the gold.

He Kexin of China won the silver medal, scoring 15.933 points.

Douglas, who led the U.S, women to a gold medal in the team competition, scored just 14.900 points to finish last in the eight-woman field.