Akihiro Yamaguchi sets world record

TOKYO -- Japanese teenager Akihiro Yamaguchi set a world record in the 200-meter breaststroke Saturday.

The 18-year-old swimmer was timed in 2 minutes, 7.01 seconds at the national meet in Gifu. He shaved 0.27 seconds off the mark set by Hungary's Daniel Gyurta when he won the gold medal at the London Olympics.

Yamaguchi was left off the Japanese Olympic team after finishing behind four-time gold medalist Kosuke Kitajima in the national trials. Kitajima failed to win an individual medal in London.